layout

A number of you have followed along with my two 1-channel AB763 6V6 amp builds (now dubbed the Mk I and Mk II). They are both good amps, but by far the Mk II has a much lower noise floor (nearly no hum and no buzz). Mk I has more hum at full volume and quite a bit more when you turn the reverb...

I've been playing around with the idea of using Nichicon filter caps in my v2 of the B-Verb amp. I'm thinking I'll move the bias components off to their own separate board which would free up space on the board for the filter caps. With an elevated heater and artificial center tap it's starting...

Hello all, I recently purchased a 70's YGM-3 from Reverb. The amp mostly works. Clean sounds pretty good, haven't cranked it yet. (new baby in the house) Reverb is almost non existent (very faint) and tremelo is way too intense, way to early. (but not bad if you like that) I opened the...

Hi, I'm trying to locate schematic/layout diagrams for the Princeton 64 Custom amp. I recently purchased the hand-wired amp and plan to do the tremolo speed and depth mods. The amp is advertised as an "authentic" AA1164 circuit...but of course it isn't, not exactly. There are obvious...

I sketched a blank template of the “Tweed Deluxe” layout to print extra copies for ease of illustration. It’s helping me as a learning tool to map out different grounds, B+, voltage nodes separately. If anyone would like to use this feel free. I will scan a copy and post a PDF later. You can...

5E3 with rectifier saver mod, Standby Delete.

Here's a first draft of the 1964 AA1164 blackface Princeton Reverb layout. The hi-res jpg, pdf and DIYLC file can be downloaded here: https://robrobinette.com/AA1164_Princeton_Reverb.htm Please let me know if you see any errors.

Here's a DIYLC hi-res and annotated AB763 (July 1963) blackface Deluxe Reverb layout. The jpg, pdf and DIYLC files can be downloaded here: https://robrobinette.com/AB763_Model_Differences.htm#Deluxe_Reverb

This is my first draft of the AB763 Super Reverb (blackface) amp. My AB763 Mods webpage has links to the jpg, pdf and diy files. Please let me know if you see any errors.