Hoffman Amplifiers Tube Amplifier Forum

Amp Stuff => Tube Amp Building - Tweaks - Repairs => Topic started by: clayman on March 12, 2014, 07:06:27 am

Title: Hot rod Pro Jr
Post by: clayman on March 12, 2014, 07:06:27 am

I was given a pro jr  Because it has a pcb,I figured the easiest thing would be to tack on some bypass caps to the 12ax7 cathodes. and maybe strap some resistors to the plate to take it up to 200k. I would like more gain for dirty blues but no heavey metal plastic fiz. Any ideas?
http://www.el34world.com/charts/Schematics/files/fender/Fender_pro_jr.pdf (http://www.el34world.com/charts/Schematics/files/fender/Fender_pro_jr.pdf)

Title: Re: Hot rod Pro Jr
Post by: sluckey on March 12, 2014, 08:33:34 am

You may also want to consider removing C2 and R6 and replacing R5 with a jumper wire.

Title: Re: Hot rod Pro Jr
Post by: clayman on March 12, 2014, 01:01:20 pm

Thanks Slucky.