Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Stankfut on October 09, 2012, 11:33:18 am
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Hey yall, what is the spacing for the mounting holes on Doug's champ ot? I need a se ot with 2 3/8 spacing. Thanks
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Here's the page with the xfmr specs:
http://www.el34world.com/Transformers/fentrans.htm (http://www.el34world.com/Transformers/fentrans.htm)
Look's like the Champ OT (p/n#022905) has the 2 3/8" mounting you need
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I choose the OT I want and simply drill one hole and use one of the existing hole if it is a build. If it is a restoration, that is a different story. Most times you can just drill the hole in the OT mount, but if not another small hole in a chassis is no big deal. Why sacrifice using the OT you want just because the holes don't align? If this is not acceptable, you can always make a mounting plate that fits the holes in the chassis and drill 2 other holes for the OT.
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ĄD'oh! I knew that Doug had that info on his site....i just couldn't find it :BangHead:. This is a restoration of sorts...cheap Japaneseamp from the late sixties. The ot mounts on the speaker frame....the chassis is really too small to mount the ot to it