Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: TerryD on November 04, 2025, 01:15:45 pm

Title: F&T 22mf/500V to replace Aston 20 mf/525V in 1964 Fender Showman
Post by: TerryD on November 04, 2025, 01:15:45 pm
Will These work?  Will the 22mf vs. 20 mf make any sonic changes.  Will the 500V vs. the original 525Vbe sufficient in the power section of a 100 wattt Fender Showman  Thanks ahead.  Terry


How about F&T 47mf/500V  for my Aston 40mf/450V in my Fender Spring Reverb unit. Will 7 more mf change the sound?  Will it be harmful??
Title: Re: F&T 22mf/500V to replace Aston 20 mf/525V in Fender Showman
Post by: stratomaster on November 04, 2025, 01:59:11 pm
The 20 vs 22μF is unlikely to make any audible difference.

You're in the best position of all of us to answer the voltage question.  Measure it. That having been said, I've yet to come across a Fender amp where I've needed more than a 500v rating on a filter cap.
Title: Re: F&T 22mf/500V to replace Aston 20 mf/525V in Fender Showman
Post by: tubeswell on November 05, 2025, 01:33:44 am
Quote from: stratomaster on November 04, 2025, 01:59:11 pm
The 20 vs 22μF is unlikely to make any audible difference.

You're in the best position of all of us to answer the voltage question.  Measure it. That having been said, I've yet to come across a Fender amp where I've needed more than a 500v rating on a filter cap.


^This^