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Hoffman Amps Forum image Author Topic: Hoffman Princeton Reverb Build  (Read 2176 times)

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Offline sclinchy

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Hoffman Princeton Reverb Build
« on: February 28, 2015, 04:47:57 pm »
About to start a Princeton reverb, my second build.  I'v done a 5F2-A and I'm hoping to re-use both the power and output transformers for the Princeton.  I used transformers from Allen Amps (sorry, Doug), the T011C output transformer and the TP25 power transformer.


Specs at http://www.allenamps.com/parts.php#transformers



Any reason to think that these wouldn't work or anything I'd need to do differently if I use these?


Thanks, guys!

Offline sluckey

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Re: Hoffman Princeton Reverb Build
« Reply #1 on: February 28, 2015, 05:04:30 pm »
PT is OK but you can't use that OT.
A schematic, layout, and hi-rez pics are very useful for troubleshooting your amp. Don't wait to be asked. JUST DO IT!

Offline eleventeen

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Re: Hoffman Princeton Reverb Build
« Reply #2 on: February 28, 2015, 11:15:02 pm »
The 5F2 (Tweed-era) Princeton is a single ended (single output tube) amp resembling a Champ much more than a dual-6V6 silverface or blackface Princeton or Princeton Reverb. Your present OT is for a single output tube, you are looking to build a 2-tube output section. No go.

Offline sclinchy

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Re: Hoffman Princeton Reverb Build
« Reply #3 on: March 01, 2015, 11:26:13 am »
Got it, guys, thanks.

 


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