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Model 90 Output Transformer
rrova
Junior Member
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Posts: 26
Threads: 4
Joined: Feb 2016
City: Nelson State, Province, Country: BC
#22

03-07-2016, 01:47 AM
Well, I got to the Ham Swap meet a bit late today (darn GPS!) but I managed to pick up a nice Precision 192 tube tester in very good condition, and a good price. Nice wooden box, too. So not a total loss! I got back to looking at the 2766J output transformer and deconstructed it a bit to see if I could figure out the true connections. The secondary connections were obvious when I saw what I was looking at, and they are NOT open, they work just fine. However, the primary side still is connected only between one of the 3 possible combinations. The other 2 combinations are infinite ohms...To see if I could understand it better, I attached my variable AC and monitored the input and output voltages. For the one good combination, I got 1V out at the secondary for 15 volts in. So something is very skewed if this should be a 100:1 turn ratio. Long story short, a Hammond 125C is on order and will arrive in a couple of weeks. Thanks again for all your input.
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Messages In This Thread
Model 90 Output Transformer - by rrova - 03-02-2016, 02:52 AM
RE: Model 90 Output Transformer - by klondike98 - 03-02-2016, 07:07 AM
RE: Model 90 Output Transformer - by morzh - 03-02-2016, 08:29 AM
RE: Model 90 Output Transformer - by Radioroslyn - 03-03-2016, 01:19 AM
RE: Model 90 Output Transformer - by rrova - 03-03-2016, 03:53 AM
RE: Model 90 Output Transformer - by Arran - 03-03-2016, 04:20 AM
RE: Model 90 Output Transformer - by rrova - 03-04-2016, 05:05 AM
RE: Model 90 Output Transformer - by morzh - 03-04-2016, 09:34 AM
RE: Model 90 Output Transformer - by rrova - 03-04-2016, 04:43 PM
RE: Model 90 Output Transformer - by morzh - 03-04-2016, 06:32 PM
RE: Model 90 Output Transformer - by rrova - 03-04-2016, 07:37 PM
RE: Model 90 Output Transformer - by morzh - 03-04-2016, 08:24 PM
RE: Model 90 Output Transformer - by rrova - 03-04-2016, 08:53 PM
RE: Model 90 Output Transformer - by morzh - 03-04-2016, 08:58 PM
RE: Model 90 Output Transformer - by rrova - 03-04-2016, 09:07 PM
RE: Model 90 Output Transformer - by Tubesforme - 03-08-2016, 02:41 PM
RE: Model 90 Output Transformer - by rrova - 03-05-2016, 03:01 AM
RE: Model 90 Output Transformer - by Radioroslyn - 03-05-2016, 07:06 PM
RE: Model 90 Output Transformer - by rrova - 03-05-2016, 07:53 PM
RE: Model 90 Output Transformer - by morzh - 03-05-2016, 07:53 PM
RE: Model 90 Output Transformer - by Radioroslyn - 03-05-2016, 09:35 PM
RE: Model 90 Output Transformer - by morzh - 03-05-2016, 10:15 PM
RE: Model 90 Output Transformer - by rrova - 03-07-2016, 01:47 AM
RE: Model 90 Output Transformer - by morzh - 03-08-2016, 02:51 PM
RE: Model 90 Output Transformer - by rrova - 03-08-2016, 05:17 PM
RE: Model 90 Output Transformer - by Tubesforme - 03-09-2016, 09:59 PM
RE: Model 90 Output Transformer - by rrova - 03-09-2016, 10:04 PM
RE: Model 90 Output Transformer - by Tubesforme - 03-12-2016, 04:47 PM
RE: Model 90 Output Transformer - by Tubesforme - 03-10-2016, 07:35 PM
RE: Model 90 Output Transformer - by morzh - 03-08-2016, 05:50 PM
RE: Model 90 Output Transformer - by rrova - 03-09-2016, 04:33 PM
RE: Model 90 Output Transformer - by morzh - 03-09-2016, 04:39 PM
RE: Model 90 Output Transformer - by morzh - 03-10-2016, 10:33 AM
RE: Model 90 Output Transformer - by morzh - 03-10-2016, 08:19 PM
RE: Model 90 Output Transformer - by rrova - 03-11-2016, 12:06 AM
RE: Model 90 Output Transformer - by morzh - 03-11-2016, 09:36 AM
RE: Model 90 Output Transformer - by Arran - 03-13-2016, 04:31 AM



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