Pro Reverb Mod Ideas

[makinrose]

Hi Guys

To find the kits and books, go to the London Power site linked from this forum
( https://londonpower.com ), scroll to Amp Mods and you will find FPM, ERK and BMK. The product descriptions are fairly extensive. If you are building amps - and want to get rid of the noise of the kits you have built - then get TUT3 The Ultimate Tone vol.3, which explains how to layout and wire amps for lowest-noise and best note articulation. There are schematics and layout drawings and all the projects have the bias adjusts and monitoring all amps should have.

FPM is designed specifically for 2-ch Fender amps of the era yours is.

ERK is the switching to match the new circuit arrangement.

BMK is the bias mod kit with meter jacks, pots, current-sense resistors.

If you were interested in getting the cranked sound of the amp at lower loudness, then SV1+RBX would be required. Power Scaling lengthens tube life as they only produce the power needed. This is the most complex mod techs or hobbyists might undertake.

DO NOT discard your tubes. They are on their tone plateau and will not change for many decades - only mechanical upset will harm them. This is discussed many places on this forum and in our books. Anyone encouraging you to change tubes every six months does not know anything about tubes and/or wants to sell you tubes you do not need. There is a thread regarding power tube tone.
https://theultimatetone.com/thread-345.html

Best to peruse the forum and read what is here - there is a tonne of information for individual projects, say, that pertains to much wider application. Similarly, read the full product descriptions for the books and kits - especially TUT3 - as you can learn things just from those.

Good stuff
Thx

Cool amp!  I work on lots of vintage Fender and the speaker vary quite a bit since they used lots of manufacturers.  I'd be interested to see what is in there---I've play with most of the speakers and might be able to give you some insight.