Month: August 2025
FENDER: Deluxe 5E3 Amplifier
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FARRINGTON: Hybrid Valve PA head
This four-channel beast is a hybrid valve PA amp, built by a bloke named Jim Farrington in NSW sometime in the late sixties or maybe seventies. From what I can tell, they mostly stayed local to where he lived, and you don’t see many pop up anywhere. I picked this up on eBay, and it … Read more
BELL & HOWELL: 622 Projector Amplifier, 5E3 Tweed Deluxe Conversion
Documenting another Bell & Howell amplifier conversion. While it has a different model number and a shiny red faceplate, it’s the same amp as the 621 and others in the series. Quite often, variations of the model number has more to do with the projector than the amp. BELL & HOWELL 622 PROJECTOR AMPLIFIER Stock … Read more
COLORSOUND: 1971 Overdriver
The Colorsound Overdriver / Power Boost family went through a few different versions over the years. This layout is for the classic 1971 9V Overdriver version – essentially the 9V successor to the earlier 18V Power Boost, with the same basic three–transistor topology but set up for a standard single-supply pedalboard. It makes a huge, … Read more
BE Fuzz Face layout
Just a Fuzz Face layout that I used recently and want to make note of – it’s based on the one knob fuzz line, which is a handy little layout, but didn’t quite suit my needs. With some minor adjustments, it can be used for most fuzz face variants – component table here. FUZZ … Read more
SiB! Electronics Mr Echo Delay
Another trace, layout and verification by Jordan Fontaine. A PT2399 based delay but it has a trick upon its sleeve that I haven’t seen elsewere, the Slam switch. Schematic is avaiable HERE.