Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and information about some of the electronic, electrical and electrotechnical Obsolete technology relics that the Frank Sharp Private museum has accumulated over the years .
Premise: There are lots of vintage electrical and electronic items that have not survived well or even completely disappeared and forgotten.

Or are not being collected nowadays in proportion to their significance or prevalence in their heyday, this is bad and the main part of the death land. The heavy, ugly sarcophagus; models with few endearing qualities, devices that have some over-riding disadvantage to ownership such as heavy weight,toxicity or inflated value when dismantled, tend to be under-represented by all but the most comprehensive collections and museums. They get relegated to the bottom of the wants list, derided as 'more trouble than they are worth', or just forgotten entirely. As a result, I started to notice gaps in the current representation of the history of electronic and electrical technology to the interested member of the public.

Following this idea around a bit, convinced me that a collection of the peculiar alone could not hope to survive on its own merits, but a museum that gave equal display space to the popular and the unpopular, would bring things to the attention of the average person that he has previously passed by or been shielded from. It's a matter of culture. From this, the Obsolete Technology Tellye Web Museum concept developed and all my other things too. It's an open platform for all electrical Electronic TV technology to have its few, but NOT last, moments of fame in a working, hand-on environment. We'll never own Colossus or Faraday's first transformer, but I can show things that you can't see at the Science Museum, and let you play with things that the Smithsonian can't allow people to touch, because my remit is different.

There was a society once that was the polar opposite of our disposable, junk society. A whole nation was built on the idea of placing quality before quantity in all things. The goal was not “more and newer,” but “better and higher" .This attitude was reflected not only in the manufacturing of material goods, but also in the realms of art and architecture, as well as in the social fabric of everyday life. The goal was for each new cohort of children to stand on a higher level than the preceding cohort: they were to be healthier, stronger, more intelligent, and more vibrant in every way.

The society that prioritized human, social and material quality is a Winner. Truly, it is the high point of all Western civilization. Consequently, its defeat meant the defeat of civilization itself.

Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

OLD, but ORIGINAL, Well made, Funny, Not remotely controlled............. and not Made in CHINA.

How to use the site:
- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

Every CRT Television saved let revive knowledge, thoughts, moments of the past life which will never return again.........

Many contemporary "televisions" (more correctly named as displays) would not have this level of staying power, many would ware out or require major services within just five years or less and of course, there is that perennial bug bear of planned obsolescence where components are deliberately designed to fail and, or manufactured with limited edition specificities..... and without considering........picture......sound........quality........
..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

Have big FUN ! !
-----------------------
©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All sets and apparates appearing here are property of Engineer Frank Sharp. NOTHING HERE IS FOR SALE !
All posts are presented here for informative, historical and educative purposes as applicable within Fair Use.


Tuesday, June 29, 2010

LOPT - FLYBACK EHT TRANSFORMER COMPARATION TABLE ORIGINAL ---> HR DIEMEN SPARE PART LIST 17

LOPT - FLYBACK EHT TRANSFORMER COMPARATION TABLE ORIGINAL ---> HR DIEMEN SPARE PART LIST 17
Here below a list of the original Flybacks LOPTS of many CRT TVs.
 Comparison list is organized with original code to the  HR DIEMEN corresponding Replacement part.
 
   These DC flybacks are found in every CRT computer monitor and are called the DST flybacks (diode-split transformers) because of the several high voltage diodes and secondaries inside. In addition to the high resistance resistor cascade (Bleeder) and focus/screen tuning potentiometers described above, these kinds may have an integrated high voltage filtering capacitor (few nanofarads at >=30 kV), or – optionally – a HV capacitor for dynamic focus.

The TV  DC flybacks are also diode-split (DST), however these are found in every modern CRT TV-set from mid-end 80s and onwards. These have just two screen-tuning potentiometers and no internal capacitors whatsoever !
ISTRUCTIONS: To search a specific item within this page use the search function of your browser.
 
Original Reference HR
H 30-02 HR 6701
H 32-01 HR 6567
H 32-02 HR 6590
H 32-03 HR 6700
H 32-10 HR 6593
H 32-11 HR 6594
H 32-11 D HR 6594
H 32-13 HR 6560
H 32-16 HR 6585
H 32-17 HR 6609
H 32-19 HR 6620
H 32-20 HR 6569
H 32-24 HR 6597
H 32-32 HR 6632
H 32-43 HR 6572
H 32-44 HR 6573
H 32-45 HR 6595
HA 166 63 HR 2265
HA 166 65 HR 2267
HA 166 66 HR 2268 RSI
HCF A 010 HR 7204
HFM 270 M 2 HR 46149
HFR 015 HR 2266 R
HFS 1418 HR 7094
HFT 158 M HR 7799
HFT 2000 HR 46212
HFT 2305 HR 8415
HFT 270 M HR 46149
HFT 270 M 2 HR 46149
HFT 3501 HR 46135
HFT 3661 HR 8408
HFT 3668 HR 8411
HFT 426 M HR 8407
HFT 718 HR 46032
HFT 721 M HR 46114
HFT 771 HR 46055
HFT 779 HR 46007
HFT 7798751 HR 46007
HFT 800 L HR 7664
HFT 805 HR 46046
HFT 814 HR 7776
HFT 814 A HR 7776
HFT 816 HR 46008
HFT 817 HR 46009
HFT 846 HR 7776
HFT 847 HR 46034
HFT 867 M HR 8222
HFT 868 HR 46052
HFT 925 HR 46046
HH 000001 HR 46186
HH 000005 HR 46222
HL 1327 DX HR 46152
HN51-14145-1 HR 7462
HN51-14184-1 HR 7462
HP 51450 HR 7456
HR 0064 RSI HR 0064 RSI
HR 0069 T3 HR 0069 T3S
HR 0071 T3 HR 0071 T3S
HR 13042 HR 13042
HR 1367 T1-35 HR 1367 T1
HR 1367 T24 HR 1367 T24V
HR 1367 T3 HR 1367 T3
HR 1367 T6 HR 1367 T6
HR 1370 HR 1370
HR 1374 HR 1374
HR 1375 HR 1375
HR 1376 HR 1376
HR 1377 HR 1377
HR 15005 HR 15005
HR 15006 HR 15006
HR 15007 HR 15007
HR 1596 HR 1596
HR 18003 HR 18003
HR 18024 HR 18024
HR 2080-10-1 HR 2080/10/1
HR 2269 T3 HR 2269 T3RSI
HR 2270 R HR 2270 R
HR 2273 T11 RSI HR 2273 T11RSI
HR 2273 T11 S HR 2273 T11S
HR 2274 T10 RSI HR 2274 T10RSI
HR 2274 T15 RSI HR 2274 T15RSI
HR 2274 T6S HR 2274 T6S
HR 2279 TS HR 2279 TS
HR 2279 T10S HR 2279 T10S
HR 2279 T11S HR 2279 T11S
HR 2279 T15S HR 2279 T15S
HR 2279 T2S HR 2279 T2S
HR 2279 T3S HR 2279 T3S
HR 2279 T4S HR 2279 T4S
HR 2279 T5 SR HR 2279 T5SR
HR 2279 T6 SR HR 2279 T6SR
HR 2279 T7S HR 2279 T7S
HR 2279 T8 SR HR 2279 T8SR
HR 2279 T9S HR 2279 T9S
HR 5563 HR 5563
HR 5566 HR 5566
HR 5622 HR 5622
HR 5650 HR 5650
HR 6001 HR 6001
HR 6001 B HR 6001
HR 6002 HR 6002
HR 6004 HR 6004
HR 6006 HR 6006
HR 6007 HR 6007
HR 6010 HR 6010
HR 6010 H HR 6010
HR 6013 HR 6013
HR 6013 B HR 6013
HR 6016 HR 6016
HR 6016-2 HR 6016
HR 6019 HR 6019
HR 6020 HR 6020
HR 6020/01 HR 6020
HR 6021 HR 6021
HR 6023 HR 6023
HR 6024 HR 6024
HR 6025 HR 6025
HR 6026 HR 6026
HR 6026 HB HR 6026
HR 6027 HR 6027
HR 6027-2 HR 6027
HR 6029 HR 6029
HR 6033 HR 6033
HR 6034 HR 6034
HR 6035 HR 6035
HR 6035 B HR 6035
HR 6035-1B HR 6035
HR 6036 HR 6036
HR 6048 HR 6048
HR 6049 HR 6049
HR 6050/01 HR 6050
HR 6054 HR 6054
HR 6055 HR 6055
HR 6056 HR 6056
HR 6064 HR 6064
HR 6066/01 HR 6066
HR 6067 B HR 6067
HR 6087 HR 6087
HR 6091 B HR 6091
HR 6092 B HR 6092
HR 6101 B HR 6101
HR 6102 B HR 6102
HR 6103 HR 6103
HR 6104 HR 6104
HR 6105 B HR 6105
HR 6107 HR 6107
HR 6117 HR 6117
HR 6124 HR 6124
HR 6136-00 HR 6136
HR 6148 HR 6148
HR 6162 HR 6162
HR 6164 HR 6164
HR 6183 HR 6183
HR 6189 HR 6189
HR 6198 HR 6198
HR 6199 HR 6199
HR 6202 HR 6202
HR 6220-00 HR 6220
HR 6220-01 HR 6220
HR 6220-02 HR 6220
HR 6220-03 HR 6220
HR 6231-00 HR 6231
HR 6231-01 HR 6231
HR 6231-02 HR 6231
HR 6233 HR 6233
HR 6234 HR 6234
HR 6238 HR 6238
HR 6238-00 HR 6238
HR 6238-01 HR 6238
HR 6238-02 HR 6238
HR 6246 HR 6246
HR 6249-00 HR 6249
HR 6249-01 HR 6249
HR 6249-02 HR 6249
HR 6249-03 HR 6249
HR 6269-00 HR 6269
HR 6274-00 HR 6274
HR 6275-00 HR 6275
HR 6286-01 HR 6286
HR 6287-00 HR 6287
HR 6299-00 HR 6299
HR 6368-10 HR 6368
HR 6370-00 HR 6370
HR 6370-10 HR 6370
HR 6370-11 HR 6370
HR 6370-12 HR 6370
HR 6381-00 HR 6381
HR 6398 HR 6398
HR 6540-00 HR 6540
HR 6545-00 HR 6545
HR 6561-01 HR 6561
HR 6562-00 HR 6562
HR 6617 HR 6617
HR 6618 HR 6618
HR 7001 HR 7001
HR 7002 HR 7002
HR 7004 HR 7004
HR 7004 H HR 7004
HR 7004-02 HR 7004
HR 7006 HR 7006
HR 7006 H HR 7006
HR 7006 HB HR 7006
HR 7008 HR 7008
HR 7010 HR 7010
HR 7011 HR 7011
HR 7011 H HR 7011
HR 7012 HR 7012
HR 7021 HR 7021
HR 7022 HR 7022
HR 7023 HR 7023
HR 7023-01 HR 7023
HR 7023-02 HR 7023
HR 7029 HR 7029
HR 7030 HR 7030
HR 7034 HR 7034
HR 7042 HR 7042
HR 7044 B HR 7044
HR 7045 B HR 7045
HR 7048 HR 7048
HR 7049 B HR 7049
HR 7050 HR 7050
HR 7051 HR 7051
HR 7075 HR 7075
HR 7075-01 HR 7075
HR 7075-02 HR 7075
HR 7096 HR 7096
HR 7096-1 HR 7096
HR 7101 HR 7101
HR 7109 HR 7109
HR 7111 HR 7111
HR 7118 HR 7118
HR 7119 HR 7119
HR 7120 HR 7120
HR 7121 HR 7121
HR 7123 HR 7123
HR 7133 HR 7133
HR 7138 HR 7138
HR 7143 HR 7143
HR 7152 HR 7152
HR 7153 HR 7153
HR 7153-01 HR 7153
HR 7157 HR 7157
HR 7160 HR 7160
HR 7177-01 HR 7177
HR 7177-02 HR 7177
HR 7186-00 HR 7186
HR 7186-01 HR 7186
HR 7189-00 HR 7189
HR 7205-00 HR 7205
HR 7209 HR 7209
HR 7283 HR 7283
HR 7341-00 HR 7341
HR 7368 HR 7368
HR 7379 HR 7379
HR 7392-01 HR 7392
HR 7501-01 HR 7501
HR 7501-02 HR 7501
HR 7501-03 HR 7501
HR 7501-04 HR 7501
HR 7502 HR 7502
HR 7508 HR 7508
HR 7512 HR 7512
HR 7515-01 HR 7515
HR 7515-02 HR 7515
HR 7515-03 HR 7515
HR 7515-04 HR 7515
HR 7517-00 HR 7517
HR 7517-01 HR 7517
HR 7521 HR 7521
HR 7521-00 HR 7521
HR 7521-01 HR 7521
HR 7521-02 HR 7521
HR 7522-00 HR 7522
HR 7522-01 HR 7522
HR 7522-02 HR 7522
HR 7528 HR 7528
HR 7528-00 HR 7528
HR 7529 HR 7529
HR 7529-00 HR 7529
HR 7531 HR 7531
HR 7531-00 HR 7531
HR 7531-01 HR 7531
HR 7531-02 HR 7531
HR 7534 HR 7534
HR 7534-00 HR 7534
HR 7534-01 HR 7534
HR 7534-02 HR 7534
HR 7540-00 HR 7540
HR 7543-00 HR 7543
HR 7543-01 HR 7543
HR 7551 HR 7551
HR 7552-00 HR 7552
HR 7553-00 HR 7553
HR 7553-50 HR 7553
HR 7555 HR 7555
HR 7558-00 HR 7558
HR 7562-01 HR 7562
HR 7576-00 HR 7576
HR 7580-00 HR 7589
HR 7597-01 HR 7597
HR 7598-01 HR 7598
HR 7923 HR 7923
HR 7926-00 HR 7926
HR 7931-00 HR 7931
HR 7939-00 HR 7939
HR 7942-00 HR 7942
HR 7943-00 HR 7943
HR 7956-00 HR 7956
HR 8040-00 HR 8040
HR 8049-00 HR 8049
HR 8061-00 HR 8061
HR 8065-00 HR 8065
HR 8174 HR 8174
HR 8176 HR 8176
HR 8180 HR 8180
HR 8198 HR 8198
HR 8203 HR 8203
HR 8278 HR 8278
HR 8284 HR 8284
HR 8285 HR 8285
HR 8289 HR 8289
HR 8647 HR 8647
HR 9100 HR 9100
HR 9217 HR 9217
HR 9219 HR 9219
HR 9301 HR 9301
HR 9306-C HR 9306 C
HR 9312 HR 9312
HR 9313 HR 9313
HR 9331 HR 9331
HR 9335 HR 9335
HR 9345 HR 9345
HR 9404 HR 9404
HR 9404-00 HR 9404
HR 9404-01 HR 9404
HR 9406 HR 9406
HR 9408 HR 9408
HR 9409 HR 9409
HR 9410 HR 9410
HR 9411 HR 9411
HR 9419 HR 9419
HR 9426 HR 9426
HR 9427 HR 9427
HR 9436.01 HR 9436
HR 9439 HR 9442
HR 9441 HR 9441
HR 9449 HR 9449
HR 9450 HR 9450
HR 9451 HR 9451
HR 9452 HR 9452
HR 9454 HR 9454
HR 9462 HR 9462
HR 9464 HR 9464
HR 9498 HR 9498
HR 9515 HR 9515
HR 9516 HR 9516
HR 9517 HR 9517
HR 9518 HR 9518
HR 9519 HR 9519
HR 9520 HR 9520
HR 9521 HR 9521
HR 9522 HR 9522
HR 9523 HR 9523
HR 9524 HR 9524
HR 9525 HR 9525
HR 9528 HR 9528
HR 9535 HR 9535
HR 9545-00 HR 9545
HR 9546 HR 9546
HR 9548-00 HR 9548
HR 9562 HR 9562
HR 9568 HR 9568
HR 9601 HR 9601
HR 9605 HR 9655
HR 9614 HR 9614
HR 9639 HR 9639
HR 9641 HR 9641
HR 9644 HR 9644 C
HR 9654 HR 9654
HR 9655 HR 9655
HR 9658 HR 9658 A
HR 9659 HR 9659
HR 9660 HR 9660
HR 9670 HR 9670
HR 9703-00 HR 9703
HR 9703-01 HR 9703
HR 9704 HR 9704
HR 9710 HR 9710
HR 9820-00 HR 9820
HR 9824-00 HR 9824
HR 9835-00 HR 9835
HR 9836-00 HR 9836
HR 9838 HR 9838
HR 9839 HR 9839
HR 9840 HR 9840
HR 9842 HR 9842
HR 9843 HR 9843
HR 9844 HR 9844
HR 9845 HR 9845
HR 9847 HR 9847
HR 9849 HR 9849
HR 9851 HR 9851
HR 9852 HR 9852
HR 9853 HR 9853
HR 9856 HR 9856
HRF 1060 HR 2290 T1
HSE 176-05 HRT 245 BS
HSE 176-07 HRT 240 BS
HSE 176-07 T HRT 240 BS
HSE 176-15 HRT 242 BP
HSE 176-17 HRT 241 BP
HSE 176-32-001 HRT 248 BP
HSE 176-32-003 HRT 255
HSE 176-32-005 HRT 251
HSE 176-32-006 HRT 264
HSE 176-32-201 HRT 250
HSE 177-003 HRT 903
HSE 186-05 HRT 218 B
HSE 186-17 HRT 219 BP
HSE 186-5X HRT 219 BP
HSE 187-006 HRT 911
HSE 187-006-13 HRT 913
HSE 187-32-06 HRT 402
HSE 196-05 HRT 222 BS
HSE 196-07 HRT 226 BS
HSE 196-15 HRT 225 BP
HSE 196-17 HRT 227 BP
HSE 196-27 HRT 227 BP
HSE 196-28 HRT 234 BP
HSE 196-37 HRT 236 BP
HSE 25 HRT 201
HSE 52 HRT 202
HSE 52-6 HRT 203
HSE 72 HRT 505
HSE 76 HRT 507
HSE 78 HRT 508 P
HSE 78-1 HRT 505 P
HSE 82 HRT 207
HSE 86 HRT 208
HSE 96 HRT 209
HSE 96-3 HRT 210 BF
HSK 103 HRT 507
HSK 103/1 HRT 507
HV 69 HRT 202
HV 70 HRT 202

A1201-0007 SAMSUNG HR 7852
A1201-0047 SAMSUNG HR 7843
A316052 PHILIPS HR 2265
A326411 PHILIPS HR 2265
A326412 PHILIPS HR 2265
A329631 PHILIPS HR 2265
A331944 PHILIPS HR 2265
A331945 IRRADIO HR 2265
A331945 PHILIPS HR 2265
A774 BUSH-MURPHY-RANK HR 4003
A774 GRANADA HR 4003
A9M308 APPLE HR 46006
AA26-30001F SAMSUNG HR 7853
AA26-30001R SAMSUNG HR 7795
AA26-30001Y SAMSUNG HR 7898
AA26-30002J SAMSUNG HR 7843
AA26-30002K SAMSUNG HR 7968
AB50H0000091 CONTI HR 7481
AFS204 SPLIT S.C. HR 7140
AFS206 SPLIT S.C. HR 7437
AFS221 SPLIT S.C. HR 7623
AFS230 SPLIT S.C. HR 7223
AFS234 SPLIT S.C. HR 7094
AFS243 SPLIT S.C. HR 7432
AFS247 SPLIT S.C. HR 7565
AFS251 SPLIT S.C. HR 7128
AFS254 SPLIT S.C. HR 7666
AFS255 SPLIT S.C. HR 7970
AFS263 SPLIT S.C. HR 7037
AFS264 SPLIT S.C. HR 7591
AFS265 SPLIT S.C. HR 7296
AFS266 SPLIT S.C. HR 7105
AFS267 SPLIT S.C. HR 7126
AFS268 SPLIT S.C. HR 7488
AFS269 SPLIT S.C. HR 7452
AFS272 SPLIT S.C. HR 7141
AFS273 SPLIT S.C. HR 7434
AFS278 SPLIT S.C. HR 7772
AFS279 SPLIT S.C. HR 7483
AFS280 SPLIT S.C. HR 7159
AFS282 SPLIT S.C. HR 7131
AFS283 SPLIT S.C. HR 7839
AFS284 SPLIT S.C. HR 7918
AG06592 PYE HR 4001
AL12/520 PLESSEY-ARCO HR 1662
AL12-13 PLESSEY-ARCO HR 1662
AL6/500 PLESSEY-ARCO HR 1662
AM1409022 AMSTRAD HR 7460
AM1420111 AMSTRAD HR 7612
AM1422180 AMSTRAD HR 6283
AM152355 AMSTRAD HR 7687
AM152591 AMSTRAD HR 7464
AM170467 AMSTRAD HR 6355
AM170468 AMSTRAD HR 7674
AM171509 AMSTRAD HR 7226
AM175082 AMSTRAD HR 7362
AM175344 AMSTRAD HR 46045
AM175714 AMSTRAD HR 46045
AM175966 AMSTRAD HR 46049
AM176407 AMSTRAD HR 46050
AM181297 AMSTRAD HR 7687
AM1813481 AMSTRAD HR 7612
AM1813482 AMSTRAD HR 7687
AM241174 AMSTRAD HR 7612
AM241612 AMSTRAD HR 7679
AM241691 AMSTRAD HR 7443
AM272556 AMSTRAD HR 42018
AM272593 AMSTRAD HR 46045
AMS012/05 VARIOS FABRICANTES HR 42083
AMS175082 AMSTRAD HR 7362
AP2140/01 PHILIPS HR 6493
AS55595 BUSH-MURPHY-RANK HR 4003
AS55595 GRANADA HR 4003
AT/16/1001 CEA ELETTRONICA HR 1601
AT/16/1001 DAMS HR 1601
AT/16/1002 CEA ELETTRONICA HR 1602
AT/16/1002 CREZAR HR 1602
AT/16/1002 WBA-SMART HR 1602
AT/16/1003 ATLANTIC HR 1603
AT/16/1003 CEA ELETTRONICA HR 1603
AT/16/1006 AUSIND HR 1606
AT/16/1006 CEA ELETTRONICA HR 1606
AT/16/1006 PAEL HR 1606
AT/16/1006 SAMBER'S / NUOVA SAMBER'S HR 1606
AT/16/1024 CEA ELETTRONICA HR 1624
AT/16/1024 WBA-SMART HR 1624
AT/16/1025 CEA ELETTRONICA HR 2080
AT/16/1026 CEA ELETTRONICA HR 2080-15
AT/16/1028 CEA ELETTRONICA HR 2063
AT/16/1029 AUSIND HR 1629
AT/16/1029 CEA ELETTRONICA HR 1629
AT/16/1029 PAEL HR 1629
AT/16/1029 SAMBER'S / NUOVA SAMBER'S HR 1629
AT/16/1032 CEA ELETTRONICA HR 1632
AT/16/1032 CREZAR HR 1632
AT/16/1033 CEA ELETTRONICA HR 1633
AT/16/1033 EMERSON HR 1633
AT/16/1033 EUROPHON HR 1633
AT/16/1033 INNO-HIT HR 1633
AT/16/1050 CEA ELETTRONICA HR 2080-10
AT/16/1051 CEA ELETTRONICA HR 1651
AT/16/1051 SEI-SINUDYNE HR 1651
AT/16/1051 SINGER HR 1651
AT/16/1051 SINUDYNE HR 1651
AT/16/1101 BRION VEGA HR 1621
AT/16/1101 CEA ELETTRONICA HR 1621
AT/16/1101 PRANDONI HR 1621
AT/16/1101 PRINCE HR 1621
AT/16/1102 CEA ELETTRONICA HR 1622
AT/16/1102 NAONIS HR 1622
AT/16/1102 RADIOMARELLI HR 1622
AT/16/1102 REX HR 1622
AT/16/1102 SELECO HR 1622
AT/16/1102 STERN HR 1622
AT/16/1102 ZANUSSI HR 1622
AT/16/1102 ZOPPAS HR 1622
AT/16/1107 CEA ELETTRONICA HR 1627
AT/16/1107 GALAXIS HR 1627
AT/16/1108 CEA ELETTRONICA HR 1628
AT/16/1108 IRRADIO HR 1628
AT/16/1109 CEA ELETTRONICA HR 3583
AT/16/1123 CEA ELETTRONICA HR 1623
AT/16/1123 IRRADIO HR 1623
AT/16/1124 CEA ELETTRONICA HR 1624
AT/17/1103 CEA ELETTRONICA HR 5525
AT1.66070 PHILIPS HR 3123
AT1.66078 PHILIPS HR 3123
AT100/8-25/1505 TELEFUNKEN HR 2171
AT100/8-25/1506 TELEFUNKEN HR 3506
AT100/8-25/1507 TELEFUNKEN HR 2181
AT100/8-25/1508 TELEFUNKEN HR 2161
AT110/18/817-5B TELEFUNKEN HR 658 RSI
AT110/18/822A IMPERIAL HR 2275 R
AT110/18/822A KUBA ELECTRONIC HR 2275 R
AT110/18/822A TELEFUNKEN HR 2275 R
AT110/25/01 C.G.E. HR 7305
AT110/25/01 CROSLEY HR 7305
AT110/25/01 IMPERIAL HR 7305
AT110/25/01 PHILCO HR 7305
AT110/25/01 TELEFUNKEN HR 7305
AT110/25/01 TELRA HR 7305
AT110/25/01 WHITE-WESTINGHOUSE HR 7305
AT110/25/02 C.G.E. HR 7306
AT110/25/02 QUELLE HR 7306
AT110/25/02 TELEFUNKEN HR 7306
AT110/25/02 TELRA HR 7306
AT110/25/05 TELEFUNKEN HR 7306
AT110/25/05F TELEFUNKEN HR 7309
AT110/25/06 IMPERIAL HR 7307
AT110/25/06 TELEFUNKEN HR 7307
AT110/25/06F IMPERIAL HR 7307
AT110/25/06F TELEFUNKEN HR 7307
AT110/25/07 IMPERIAL HR 7311
AT110/25/07 KUBA ELECTRONIC HR 7311
AT110/25/07 TELEFUNKEN HR 7311
AT110/25/07 THOMSON HR 7311
AT110/25/1000 TELEFUNKEN HR 7305
AT110/25/1000 TELRA HR 7305
AT110/25/15 TELEFUNKEN HR 7307
AT110/25/15F IMPERIAL HR 7309
AT110/25/15F KUBA ELECTRONIC HR 7309
AT110/25/15F TELEFUNKEN HR 7309
AT110/25/20 TELEFUNKEN HR 7325
AT110/25/20 THOMSON HR 7325
AT110/25/20 VIDEOTON HR 7325
AT110/25/20 WALTHAM HR 7325
AT110/25/20 HR 7325
AT110/25/21 BANG OLUFSEN - BO HR 7319
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AT110/25/22 BANG OLUFSEN - BO HR 7321
AT110/25/22 NORDMENDE HR 7321
AT110/25/22 TELEFUNKEN HR 7321
AT110/25/26 BANG OLUFSEN - BO HR 7321
AT110/25/26 NORDMENDE HR 7321
AT110/25/26 TELEFUNKEN HR 7321
AT110/25/29 TELEFUNKEN HR 7326
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AT110/26/05F IMPERIAL HR 7309
AT110/26/05F KUBA ELECTRONIC HR 7309
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AT110/27/07 KUBA ELECTRONIC HR 7311
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AT110/27/07 THOMSON HR 7311
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AT110/27/17 KUBA ELECTRONIC HR 7317
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AT110/27/17 TELEFUNKEN HR 7317
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AT2076/30 PHOENIX HR 6076
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AT2076/30 SCOTT HR 6076
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AT2076/30 WESTINGHOUSE HR 6076
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AT2076/60 PHILIPS HR 6297
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AT2076/70 PHILIPS HR 6070
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AT2076/70A PHILCO HR 6070
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AT2076/71 CROSLEY HR 6071
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AT2077/34M PHILIPS HR 6216
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AT2077/46AP PHILIPS HR 6367
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AT2078/20 PHILIPS HR 7704
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AT2078/20G HR 7704
AT2078/21 BEKO - BEKOTEKNIK HR 7669
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AT2078/83 CLATRONIC HR 7258
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AT2078/83 ELCIT HR 7258
AT2078/83 FRABA HR 7258
AT2078/83 LIFETECH HR 7258
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AT2078/83 PHILIPS HR 7258
AT2078/83 PRO.EL HR 7258
AT2078/83 PROTECH HR 7258
AT2078/83 RADIOMARELLI HR 7258
AT2078/83 SCHNEIDER HR 7258
AT2078/83I PHILIPS HR 7354
AT2078/83TB PHILIPS HR 7354
AT2078/83TB RADIOMARELLI HR 7354
AT2078/83TI PHILIPS HR 7354
AT2078/S0 PHILIPS HR 7259
AT2079 AUSIND HR 2070
AT2079 GALAXIS HR 2070
AT2079 NOKIA - ITT HR 2070
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 Line transformers generate the necessary deflection pulse and other many key voltages and the  high voltage for anode of the picture tube in tube televisions and computer monitors. Usually this is around 30 kV for a color device, but the current is  with approx. 0.5 to 4 mA.

The line transformer or horizontal output transformer (English: flyback transformer or line output transformer) is part of a television / monitor with picture tube. It is used to supply the line deflection coil of the deflection system and at the same time usually also to generate the high voltage of 20 to 30 kV required for the operation of the picture tube and other voltages necessary for the operation of the device.

Line transformers work with the line frequency, with European TV sets with 15.625 kHz. Line transformers of 100 Hz televisions work at twice the frequency, i.e. at 31.25 kHz. In monitors, the line transformer is operated at different frequencies, which depend on the resolution of the image sent by the computer. For example, the line frequency of a monitor with a resolution of 1024 × 768 pixels and 85 Hz vertical frequency is approximately 68.7 kHz. With these frequencies, the line output stage switches a switching tube or today a switching transistor, which are used to control the line transformer.
The whistling noise of some older monitors and most older, conventional TV sets arises from the fact that mainly the line transformer, but also other components such as coils and capacitors, are mechanically excited to vibrate by the occurring magnetic and electrostatic forces. Whistling has a frequency of 15.625 kHz due to the European television standard. TVs with 100 Hz technology and most high-resolution computer monitors whistle outside the listening area........

Line transformers are potted with resin and have a ferrite core and are therefore of course only suitable for high frequencies in the kHz range. Newer types, so-called diode split transformers, contain many individual diodes between the windings and thus supply a rectified high voltage (pulsating DC voltage). Older models made of black and white devices have an external cascade, the direct (high-frequency) output voltage is then only about 8 kV, but a little more current is available with such AC line transformers. Line transformers require an electronic control circuit which provides a square wave signal in the range of approx. 15 kHz.

Diode split transformer with permanently cast diodes and DC output The advantage of line transformers: They are easy and inexpensive (or free) and can be obtained in large numbers at radio / TV shops and in computer shops where devices are disposed of. Especially nowadays, in which tube monitors have to make room for flat screens, many old monitors and TVs are disposed of.

Removal and wiring of a line transformer:

Important when removing the line transformer from the TV or monitor: First discharge the picture tube, then remove the high-voltage connection, and draw out the pin assignment of the line transformer before unsoldering. Two connections are particularly important: supply supply (approx. 150V from the power supply unit) and connection that goes to the collector of the horizontal output transistor or on very older types to a tube or thyristor final stage.


The thick, well-insulated, red cable is the high-voltage output (approx. 30kV), while the somewhat thinner, black cable carries the focus voltage, which is only around 6kV. Finally, the orange cable brings the grid 2 voltage, which is only a few hundred volts. 
 
 

 TV / MONITOR  Fly-Back Transformer Replacement GUIDE:


All repairers with  experience, once made a replacement of a driver transformer with more or less fortune. All we did was to methodize the work and modify the circuit to work optimally.

But....... when it comes to a fly-back Transformer , practically all repairers think that if the replacement is not the exact fly-back  Transformer, absolutely nothing can be done. In principle we would like to clarify that manufacturers of replacement fly-backs do not manufacture all fly-back Transformer variants; they only manufacture some of them and then connect the bases according to the different models and mark them with a different code. ANYWAY SPECIFICITY IS OEM RELATED BY DESIGN.

EXAMPLE:Between different 20" fly-backs Transformer , for example, there are usually minimal differences except in the position of the legs. If there are notable differences, it is in the high voltage because this varies according to the size of the screen. The 14" tubes usually have extra high tensions of 18 to 20 KV; the 20" tubes between 23 and 25 KV and finally the 29 and 33" tubes have tensions higher than 28 KV / 36KV. In addition, the larger tubes have a different horizontal output circuit that has an east/west modulator to correct the pad effect plus other specific parts.

Let's limit our analysis to 14 and 20" TVs from which the fly-back Transformer is not achieved. The first step is to know a fly-back inside to understand the replacement work. Let's analyze the returns and live of the auxiliary windings.
CHECK schematic diagram and study it.

A modern fly-back Transformer is a hybrid of a high and low voltage transformer and a screen voltage and focus adjustment circuit. It can be divided for analysis into a transformer and a focus pack.


NOTE:  fly-back Transformer IS SPECIFIC TO TV / MONITOR CHASSIS BY DESIGN, TAKE ALWAYS ORIGINAL OEM OR ORIGINAL MATCHED REPLACEMENTS.

Transformer analysis:


The transformer is fundamental part of the horizontal output circuit because it connects the source to the collector of the horizontal output transistor through an inductance about 4 times greater than that of the yoke. In this way, only 1.5 to 1.7 A of the 6 or 7 A peak-to-peak current through the yoke flows through the fly-back and the horizontal source capacitor. Be aware that in older tvs which may  have greater deflection systems the currents are higher.

But the fly-back is not an inductor, it is a transformer and part of the energy existing in its primary is transformed into several low voltage windings, which feed different stages of the TV such as the jungle, the vertical output, the video stage , the sound, key voltages for chroma, sync, and many others services depending on design, and above all the tube filament (which is not rectified but applied as AC). These windings are strongly coupled to the primary because they are built above or below it.

The geometry of the fly-back core is very particular because it is a transformer that has a high voltage winding and the turns of that winding must be away from the core. Therefore, the classic shape of the core with an "E" and "I" shape is abandoned and a shape with two "U"'s is used where the HV winding enters loosely. The spool of that winding has a slotted shape, where only the diameter of a wire enters. In this way the winding is really a wire spiral and in reality it is not one single winding but 4 or many more , each one with its corresponding high voltage diode and its filtering capacitor, also of high voltage. This winding, because of its shape, is loosely coupled to the primary so that a fault in it, is not transferred as a short circuit but as a reduction of primary inductance but it will produce a malfunction.

As we know, the return of the high voltage winding is not connected to ground, but to the horizontal source. A 20" tube supports only a maximum current for each cathode of 330 uA; between the three cathodes they can consume a maximum of 1 mA and that current is directed from the cathodes to the aluminizing of the screen that is part of the final anode of the tube. This current returns through the winding and produces a voltage drop in a network
Synthetically, if the image is black there is no current and the voltage of ABL  When the brightness increases, the voltage increases  so that when 1 mA circulates, the voltage   is cancelled and there operates the jungle / luminance matrix stages limiting the brightness and contrast.


Analysis of the focus / G2 VOLT pack inside  DST Transformer


Flyback deflection systems are well known and widely used in television receivers. In such systems, a deflection voltage source drives an autotransformer with a ramp shaped current for deflecting an electron beam across the phosphor coated faceplate of a cathode ray tube (CRT). At the end of the ramp waveform, a relatively large retrace pulse is developed. This pulse is magnified by the turns of the flyback transformer winding and rectified to develop the high DC voltage required to operate the CRT. As is well known, although the high voltage system is tuned, the high DC voltage produced varies substantially with system loading that occurs due to increases in the electron beam current of the CRT. There have been numerous circuits in the art for "stiffening" the high voltage supply. In many applications, a separate, non-deflection-based high voltage system is used because of its tighter tolerance on regulation.

With the growing use of computer monitors, the need for precision CRT displays has increased. In these uses, high voltage regulation is critical and needs to be closely controlled to prevent unacceptable raster distortion and size changes. On the other hand, the needs of the marketplace are such that the cost of the monitor must be maintained as low as possible.

The focus pack has several functions: it is a double variable voltage attenuator also known as HV Bleeder. The highest voltage is for the focus and the lowest for the screen. The older tubes are low focus and the focus pack delivers voltages of approximately 8 KV. The newer and bigger ones are high focus and deliver about 9.5 KV. It is not possible to change a low-focus fly-back for a high-focus one, because it does not adjust the focus.

Generally, the conventional bleeder resistor is manufactured in the following manner. , there is prepared a ceramic substrate  made of Al2 O3 having a purity of about 96%. Its thickness is about 0.5-1.2 mm, and its area is 400-1500 mm2. Upon the ceramic substrate , there is printed PbAg, PtAg, Ag or their combination paste. Then the printed substrate is baked at a temperature of about 800° C., and thus, a printed circuit board is formed, and then lead wires are soldered. Then RuO2 is printed thereupon, and then the structure is baked at a temperature of about 850° C. Thus a resistor having a certain thickness is completed.

Meanwhile, in this resistor, electric current can flow only if the electrical resistance per unit length of the resistor is smaller than the air contact electrical resistivity. In the case where the voltage breakdown resistivity of air is 0.5 KV/mm, if a voltage of 20 KV is supplied across a resistor 12, there has to be secured a distance of 20 KV÷0.5 KV/mm=40 mm. Further, if the thermal degradation and the environmental factors are taken into account, then the safe distance must be 1.8 times as large as the above distance, that is, 40 mm×1.8=72 mm. Meanwhile, in the case where the resistor 12 is printed on the ceramic substrate 10 in a straight line, the length of the ceramic substrate has to be longer, with the result that the total bulk of the ceramic substrate becomes too large.



The screen voltage is approximately the same for all tubes (in the order of 250 to 350V or 500 to 800V). Both voltages are provided by voltage dividers and high value potentiometers because they are directed to grids in the tube that do not consume current. As you can see, the circuit is simply a series of two high voltage potentiometers and two high voltage resistors connected between the pacifier output and ground. In figure above I draw the focus pack circuit only with the characteristic voltages and resistances, which are practically the same (or at least proportional) for all the equipment.


The resistance values are high enough that it is impossible to measure them with a digital or analog tester. It is even impossible to measure the voltages at the focus and screen outputs without altering their value. And they're prone to defects such rising in values or dropping value.

Now that we know the circuit let's start with the replacement work. As the fly-back has two sections we must analyze the failures of both sections separately starting with the fly-backs that have problems in the focus pack.

The most common fault is a dark screen despite the existence of high voltage. A high voltage tip should really be used for the tester if we want to be sure of the existence of the 25KV of AT but generally the test of measuring the screen voltage with the potentiometer at maximum is usually enough to verify that there is high voltage.

The ideal is to use the focus pack of a disused fly-back  Transformer set on a 20" TV that works well to indicate 250V on the screen output by adjusting the potentiometer. Without much error you can interpret that this test TV is 25 KV and already has a high voltage attenuator set that you must connect to the pacifier of the TV under test with an alligator clip that will be covered by the pacifier so that no arcs are produced.

If there is good high voltage and the screen is dark the problem may not be in the fly-back  Transformer. The most basic thing is to see if the tube filament is on and measure the screen voltage if you have not already measured it. If both things are OK, you should measure the focus voltage, with a high voltage tip that has a resistance greater than 200 MOhms.


The measurement with instruments is not dangerous for the circuit, because the focus source is of high impedance. 



At the time when indicated to connect the three cathodes to earth briefly  with resistors of 150KOhms and to return to test if the screen illuminates the problem is in the video card or the jungle.

But if the problem is in the focus pack you don't need to change the whole fly back. Transformer In specialized stores they sell focus packs ready to be connected to the pacifier that generate the focus and screen voltage. Cut the cables of the damaged focus pack, connect the new ones and test. You can also use a fly-back that has a damaged winding. This case is specific with external HT bleeders where the focus voltage is obtained from.


  If the problem is in the winding section of the fly-back Transformer  the first thing to do is to check the operation of the stage with the simulated fly-back instrument. Connect it replacing the primary and measure the collector oscillogram with low source voltage (for example 10% of the nominal value); if you do not have an oscilloscope, try it with the horizontal output detector (a RF detector probe) which can be lowered free of charge from and if the delay voltage has a normal value of about 80V, pass gradually to higher source values until the nominal value is reached.
    If everything is normal, try connecting only the primary of the fly-back Transformer supposedly damaged. This means that you must disconnect all the auxiliary diodes, including the HV pacifier, and try again, starting with a source voltage of 10% of the nominal value, until you reach 100%. If everything is OK, the problem is not in the fly-back Transformer but in some of the auxiliary circuits. Connect the auxiliary diodes one by one and always perform the same test starting from 10% of the source voltage until the damaged auxiliary circuit is discovered. Note: Although unlikely, consider that there may be more than one damaged auxiliary circuit. 

TAKE NOTE THAT THE'RE MAY A SPECIFIC PROTECTIVE TV CIRCUIT THAT WILL STOP THE HORIZONTAL OUTPUT IF IT IS NOT WORKING PROPERLY AND ALSO SOME  TV POWER SUPPLY VOLTAGE MAY NOT WORK PROPERLY IF THE HORIZONTAL OUTPUT IS NOT WORKING PROPERLY DUE TO A FLY-BACK TRANSFORMER WHICH MAY BE DEFECTIVE.

AS EXAMPLE:

In a typical switch mode power supply (SMPS) of a television receiver the AC mains supply voltage is coupled, for example, directly, and without using transformer coupling, to a bridge rectifier. An unregulated direct current (DC) input supply voltage is produced that is, for example, referenced to a common conductor, referred to as "hot" ground, and that is conductively isolated from the cold ground conductor. A pulse width modulator controls the duty cycle of a chopper transistor switch that applies the unregulated supply voltage across a primary winding of an isolating flyback transformer. A flyback voltage at a frequency that is determined by the modulator is developed at a secondary winding of the transformer and is rectified to produce a DC output supply voltage such as a voltage B+ that energizes a horizontal deflection circuit of the television receiver. The primary winding of the flyback transformer is, for example, conductively coupled to the hot ground conductor. The secondary winding of the flyback transformer and voltage B+ may be conductively isolated from the hot ground conductor by the hot-cold barrier formed by the transformer.

It may be desirable to synchronize the operation of the chopper transistor to horizontal scanning frequency for preventing the occurrence of an objectionable visual pattern in an image displayed in a display of the television receiver.

It may be further desirable to couple a horizontal synchronizing signal that is referenced to the cold ground to the pulse-width modulator that is referenced to the hot ground such that isolation is maintained.

A synchronized switch mode power supply, embodying an aspect of the invention, includes a transformer having first and second windings. A first switching arrangement is coupled to the first winding for generating a first switching current in the first winding to periodically energize the second winding. A source of a synchronizing input signal at a frequency that is related to a deflection frequency is provided. A second switching arrangement responsive to the input signal and coupled to the second winding periodically applies a low impedance across the energized second winding that by transformer action produces a substantial increase in the first switching current. A periodic first control signal is generated. The increase in the first switching current is sensed to synchronize the first control signal to the input signal. An output supply voltage is generated from an input supply voltage in accordance with the first control signal.


But if everything indicates that the problem is in the fly-back Transformer and the fly-back is not achieved, then we must find a fly-back Transformer as similar as possible (better original)  to ours and perform a very simple test. Make a 2 or 3 turns winding in any open place of the core by connecting one end of the winding to ground. If you have an oscilloscope, connect it over the added winding to raise the oscillogram; otherwise, connect the rewind pulse detector indicated above to a tip of the winding and then invert it to find both the positive and negative value of the signal. Connect only the primary of the new fly-back and run it at the nominal voltage.

 The oscillogram obtained will be similar to the one in figure: 



The oscillogram could appear inverted since we made our coil with any direction. If it appears inverted, change the ground connection to live. The most important thing is that you measure the peak pulse value of the signal, which in our case is 23.8V. If this voltage corresponds to three turns, calculate the value of voltage per turn as 23.8/3 = 7.9 V/turn.

If you don't have an oscilloscope, you can use the audio probe for the tester (A RF detector probe)  that will indicate directly the  value of the signal or make the double measurement with the delay detector.

Now we have to start modifying the auxiliary voltages of our substitute fly-back  Transformer if necessary. Let's start with the filament voltage. Observe the circuit of the substitute fly-back to find the ground leg and connect it to ground. Now measure the other auxiliary legs and note the peak to peak values. The filament should have a  peak pulse voltage of about 22 or 23 V. Do not try to measure the RMS voltage with a common tester or with the peak value probe. None of the classic instruments will show a peak pulse value of 6.3V. It is best to calculate the RMS value as a function of the peak-to-peak value for a delay time of 12 uS, which is what we did to indicate the correct peak value of 22.5V.

It is very likely that by changing the number of turns you will not be able to achieve the exact value. In that case you should calculate the excess turns and then adjust the resistor  value to get 22.5V on the filament. In our case you can test the voltage value of the filament winding and if it is close to the indicated one modify the value of resistor .

Is it very important that this voltage value is accurate? Yes, but a fluctuation of 1V cannot shorten the life of the tube but it's better avoided. The filament of a tube is far from the melting point, i.e. it is undervolted to increase the life to a value far above the cathode depletion but also better avoided.


Adjusting a Running Auxiliary Voltage

Let's suppose that the winding for the vertical voltage has to give 25V and gives 18. We measure that our fly-back has 7.9 V peaks per turn. For a delay time like the one indicated, the relationship between the positive semicircle and the peak value taken from the oscillogram in figure 30.4.3 is 3,07/23,8=0,13. This means that each turn adds a voltage of 3.67V to the rectified voltage and that to go from 18 to 25 you have to add approximately two turns (7.34V+18 = 25.34V). Without an oscilloscope, I have to add the two turns  and measure a voltage of 3.67/0.13= 28.2V with the peak probe. Now, I must cut the printed circuit and connect from the fly-back leg a wire that must pass twice inside the core and solder it to the cut track on the side of the diode.

Note: the direction of the winding is impossible to determine a priori, the most advisable thing to do is to choose any and measure if the voltage has the correct value. If not, the winding or connections must be reversed.

In this way all windings must be corrected, so that the fly-back is ready to perform a final test with everything connected.

But the auxiliary voltages are not all that differentiate one fly-back from another. In the next delivery we will explain how to perform the final test without burning anything in the attempt, and that should be changed if the width is not correct.

 

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