Hoffman Amplifiers Tube Amplifier Forum
Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: fretts on December 01, 2025, 06:21:44 pm
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Can somebody let me know the physical dimensions of the Princeton Reverb turret board?
I have a notion to try to build one in a gutted Vibro-Champ chassis I have had in the garage for quite some time.
If I can squeeze it in there, I'll build it.
I know Fender now makes a 5 watt Vibro-Champ Reverb, but I am no fan of their current construction standards.
I want to build it in a bulletproof manner, so it will have to be a DIY job. Thanks!
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https://el34world.com/schematics.htm#Hoffman_Princeton_Reverb_ (https://el34world.com/schematics.htm#Hoffman_Princeton_Reverb_)
Franco
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3.125" x 11.5"
Thank you Franco!
--Jeff
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I think a Vibro Champ chassis is going to be too tight to fit a Princeton Rev board + all the tubes, etc. Might be an easier project to do a Princeton 6G2 or Princeton Reverb AA1164 with Reverb and tremolo deleted. Depends on what features you want and what sound you want.
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I find that version taking up too much real estate. I redrew it to make it more compact.
One square represents 10mm x 10mm
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3.125" x 9.41"
NO tremolo version
Franco
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Doug sells these for US$28.66
https://hoffmanamps.com/MyStore/perlshop.cgi?ACTION=enter&thispage=EyeletBoard.htm&ORDER_ID=!ORDERID! (https://hoffmanamps.com/MyStore/perlshop.cgi?ACTION=enter&thispage=EyeletBoard.htm&ORDER_ID=!ORDERID!)