Fairchild 660/670 Transformers

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opacheco

Well-known member
Joined
Mar 16, 2006
Messages
887
Location
HONDURAS
Hi,

Someone knows what spec have the T101/T201, T102/T202, T103/T203, T104/T204 and powers transformers T301, T302, T303, T304???.....

What did magnetic material do for the Core???

What kind of wire and turns for each in its diferents wounds??

Did they use a Paper bobbins(nomex?)???

I would like to know this data in order to search for equivalent or wind them by myself!!!!.....(hard work!)


Thanks a lot,
Opacheco.
 
Will be this option a REAL sustitution for these Transformers???.......

•1 SOWTER 8344E SIGNAL AMP OUTPUT  for T101
•1 SOWTER 8345E CONTROL AMP INPUT  for T102
•1 SOWTER 8346E SIGNAL AMP INPUT      for T103
•1 SOWTER 9643S CONTROL AMP OUTPUT for T104
•1 SOWTER 0474S MAIN POWER TRANSFORMER for T302
•1 SOWTER 0475S BIAS POWER for T301
•1 SOWTER 0476S POWER TUBE HEATER 6.3V for T304
•1 SOWTER 1136S BIAS CHOKE for L302
•1 SOWTER CA15S HT CHOKE for L301

How near are these transformers to the originals???

Opacheco.
 
Well, I would be taking a huge risk to comment on the sound of stuff I haven´t heard or tested. Perhaps best answered by the tranny king, CJ. I somewhat suspect his answer will be along the lines of "If it ain't the same, it ain't the same".  :)

Best,

/Dave

edit: Ah, I see you've been there already. ;D
 
craptical said:
Well, I would be taking a huge risk to comment on the sound of stuff I haven´t heard or tested. Perhaps best answered by the tranny king, CJ. I somewhat suspect his answer will be along the lines of "If it ain't the same, it ain't the same".  :)

Best,

/Dave

edit: Ah, I see you've been there already. ;D


Dave, Thanks.....Maybe CJ can give us yours comments about!.

Opacheco.
 
Signal Input - UTC A26  (used backwards)  + A-33 Shield Can

http://www.groupdiy.com/index.php?topic=35639.0

2801iee.jpg


Signal Output - Triad HS-52

255 Turns of #31 

1425 Turnsa of #39

1425 Turns #39

255 Turns #31

50/50 Core 21 EI LAms 1/2 x 7/8 inch stack...

Control Input - UTC Y-6431

http://www.groupdiy.com/index.php?topic=35548.0

311w5c2.jpg


Control Output = Chicago Transformer PSO - 150  (use Sowter)

Power Transformer =  Chicago Transformer  PC -200

Power Choke  - Chicago Transformer  (don't recall p/n)
 
WOW!!!!!!!..............CJ THANKS A LOT for your kidness and time for these drawing!!!!.....
That's very clear!!....
Opacheco.
 
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