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Posted: **Thu Jul 23, 2009 7:07 pm**

Hey Everyone..I ma relative newbie to amps..I have made several mods to my fender champ 12 with great success..my final improvement will be to upgrade the OT. Im liking the looks of an Edcor GXSE15-8-5k. I think this is a good match as the replacement for t202 listed at Angela Instruments is a 5482 primary and a 8 ohm sec. Am I overlooking anything?
Here is the schematic( which I dont read very well as far as trying to get specs from the trannys)

Posted: **Thu Jul 23, 2009 8:17 pm**

Hi , why do whant to change it , and what is your abjective sound sound wise . Can't see the output tube type , if its a 6V6 an 8 k transformer would be what you want to use .

Mark

Posted: **Thu Jul 23, 2009 9:24 pm**

Can you provide a link for that schematic? I need to make it BIG so I can see what's going on.

Posted: **Thu Jul 23, 2009 10:10 pm**

I just think with the mods ive done the cheaper ot that is stock could be replaced. It sounds good but can be slightly muddy in the lower registers Im looking for more definition I guess. This is a red knob champ12 from late 80s. It runs one 6l6 power and 2 12ax7s pre.
Thanks for any input
heres a link
http://i227.photobucket.com/albums/dd12 ... _schem.gif

Posted: **Thu Jul 23, 2009 10:15 pm**

sorry try this
http://s227.photobucket.com/albums/dd12 ... _schem.gif

Posted: **Fri Jul 24, 2009 12:40 am**

That would be the correct transformer for you amp .

Mark

Posted: **Fri Jul 24, 2009 10:19 am**

Thanks for the input Battradio..did you discern this from the schematic or from the single 6l6 needing a certain current.Forgive my ignorance ..there are some aspects I get but the power tran-power tube-output tran relationship I dont quite get yet.
Thanks

Posted: **Fri Jul 24, 2009 11:50 am**

Just noticed: where in Humboldt? Give us a call if you feel like it. 839-5568 after 7 PM.

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Output Transformer Question

Output Transformer Question