Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: Joel in Texas on April 29, 2019, 02:33:05 pm

Title: uf4007 ok to use for bias supply in Ampeg B25?
Post by: Joel in Texas on April 29, 2019, 02:33:05 pm

Hi all.  Working on an Ampeg B25 with a handful of issues. 

Here is a link to the schematic:

https://irationaudio.files.wordpress.com/2015/03/ampeg-b-25-schematic1.jpg

Any recommendations for a replacement for the bias supply diode, marked F4 on the schematic? 

uf4007?  Other?

Thanks.

Title: Re: uf4007 ok to use for bias supply in Ampeg B25?
Post by: st on April 29, 2019, 02:43:10 pm

A 4007 is de ok.