Since there were some errors on the schematic, please refer to these values should you need recapping your vintage Ace Tone drum machine:
I have been building Selmer Buzz Tones for a few groupies n fans recently.
Featuring rare 2N2613 transistors on choc brown paxoline board, on eyelets just like the original.
One small mod is the cap tuck away under the board, to give it some juice.
Cheapo build for a friend:
Another build.. featuring the Palenque astronaut..
When i was a Londoner, id often catch the 24 bus on sunday mornings from Hampsted Heath to its final destination, Pimlico. There was a pub there, next to the bus station where we would go have brunch and shoot pool. In the afternoon we would visit the Tate, usually.
And we would enjoy the haunting, post modern view of the abandoned Battersea Power Station from Pimlico.
Gilmour used a rams head Big Muff on Animals apparently.
Built for a friend on a pcb by OP ELECTRONICS, IT. Transistors BC239C from ebay seller, Whazzgroover. Sprague caps, etc
First time i mess with a hot glue gun, and i guess you can tell! 🐣
Syd Barrett’s hairy boost.. VERY WARM AND THICK. Perfect counterpart to Syd’s favourite amp settings, basically treble at 10.
Perfunctory build on eyelet board, with external vero for transistor testing, using 2N2613 as per original.
I also made a quick little excuse for a tune to test it further.. sorry for the hurried and far from great mix:
Well.. At last i can say it: my clone (see back pages/older posts) sounds GREAT. Against this original (2N2614 transistors), with little or no attack pot excursion, aka max it or it wont fuzz, my clone is a pot full of sweet spots. Maxed, it is plain evil. Compressed.
Comparison, original vs my clone:
Still, the original has got so much mojo.. Magic. I will not mod it to bias the transistors better. As the Poets said, THAT’S THE WAY IT’S GOT TO BE.
The first fuzz box.. The Satisfaction horns sound, the star of so many fuzztonic records. I had to make myself the perfect clone! Yes i built a couple of these before, but i wanted to build it properly.. This is what i came up with:
I did find them! A small stash of them actually! And i didnt have to sell my body to get them. Not RCA’s, but NOS 2N270: leaky, gainy, nasty 2N270s!
Next, i set up this testing board with a nice ZIF socket!
First good set-listen:
Q1 hfe 79 lkge 0.12mA
Q2 hfe 168 lkge 0.53 mA
Q3 hfe 131 lkge 0.70 mA
I tried inverting Q3 and Q2 but the distortion was oscillating..