SELMER: Buzztone
Sorry it took so long… apparently this can be tricky to make, so hope it goes well. Maybe breadboard it first. SELMER BUZZTONE 0.15″ VERO LAYOUT
Month: June 2025
AnalogMan Sunface
Happy Fuzz Friday! Been meaning to redo this one for a while with board mounted pots. A buddy of mine was reminiscing about a Sunface he used to own and wish he still had, so I built this with some OC71s for his 40th b-day. AnalogMan has used loads of different transistors in these over … Read more
BELL & HOWELL: Model 621 Projector Amplifier, 1951
Despite saying never again – I now have another Bell & Howell projector amp. This is a 621 model from 1951, which as far as the amp is concerned, looks almost identical to my 601 from 1949. I believe the main differences were with the actual projector itself – the 621 being a later and improved model. … Read more
TONE STACK: James
The James tone stack is one of the more common bass/treble tone controls. You most often see it in hi-fi equipment, or in guitar amps that sit outside the usual Fender and Marshall mould – although both Fender and Marshall did use similar circuits on rare occasions. Probably the best-known guitar amp examples are Orange … Read more
VOX: AC2 & AC30 Schematics, EL34 based
The little-known EL34 Vox amps from the late fifties, one of which is fixed bias. https://www.voxac30.org.uk/vox_ac2_30_1957.html. VOX AC2, 30 WATT AMPLIFIER. OS/003 (FIXED BIAS) VOX AC30, NO2. OS/007 1960 (CATHODE BIASED) EL34: individual 470 ohm cathode resistor and 50uf bypass caps. 5k output transformer