Schematic is avaiable HERE.
Saturday, 7 December 2024
Friday, 6 December 2024
Monday, 2 December 2024
Saturday, 30 November 2024
Friday, 29 November 2024
Monday, 25 November 2024
Monday, 30 September 2024
Sunday, 29 September 2024
Holy Island Audio Cannibal Pride Drone Synth
Chris have done it again...
"Gwion of Holy Island Audio builds awesome stuff and, included in the package if you purchased the debut release from Gwion's band, Smothering, is a DIY PCB for a three oscillator drone synth called the Cannibal Pride. This is that synth, and it sounds KILLER - keep in mind that, as this is a sound source and not an effect, there is of course, no input."
Friday, 20 September 2024
Thursday, 19 September 2024
Tuesday, 17 September 2024
Sunday, 15 September 2024
Saturday, 14 September 2024
BJFe Universal Reverb V2 / Capitalist Death Cult Actual G*ddamned Springs
Heavily modified revebr unit by BJFe, treated by Chris Stelloh.
A couple of the tweaks are from Björn - in particular, the 2k2 resistor from the source of Q1 to ground. Lowering that value fixes a volume drop that can happen when the 50k dwell pot is maxed. I replaced the second dwell pot with a 10 ohm fixed resistor, so that it is almost at maximum. I also added a flat-mids BMP tone control and BC337 recovery stage that sounds really great paired with this circuit. Using a PN3269a in Q2 can squeal with feedback (a GOOD thing in my world) so dialing in the 10k output trimpot is a necessary step. It is possible to set it so that it only howls when the dwell+mix are turned to maximum. The charge pump is something I redrew from an old tagboard layout. The 555 doubler puts out 30mA of current which this verb circuit needs most of (the schematic says it draws around 20mA, and that was before I added the extra transistor) no matter what voltage you are running it at.
Friday, 6 September 2024
Tuesday, 3 September 2024
Friday, 30 August 2024
Thursday, 29 August 2024
Tuesday, 27 August 2024
Sunday, 25 August 2024
1776 Multiplex Delay Modulation Add-on
A little useful modulation daughterboard for your delay circuits. Created by the one and only Chris Stelloh.
I originally made this for Ben Spinks, who verified it. It's the modulation daughterboard for the 1776 Effects Multiplex delay and it works pretty well with just about any PT2399 delay circuit. I've listed my preferred values as well as the originals from the build document. You can add a toggle between the mod depth and the delay pot to turn it off and on, but if you simply max the speed/rate knob, the modulation is no longer audible and the rate LED is static.
Friday, 23 August 2024
Thursday, 22 August 2024
Sunday, 18 August 2024
Claybridge Fuzzmaster Mk. IV
How about an austrailian fuzz box from the late 60s?
Amazing that there is still undiscovered old circuits around...
Note that pot values and tapers are still unconfirmed but all of them is most likely 500k.
Schematic is avaiable HERE.
Electro Harmonix Bass Big Muff
Per request. Was a bit hesistant to upload this since there are three missing cap values. But socketing some values should get you close enough. magus femar did some socketing and ended up with some values that works well. See the notes below the layout. Note that I omitted the ferrite beads since they are overkill and I also omitted the direct output jack.
Schematic is avaiable HERE.
Saturday, 17 August 2024
Friday, 16 August 2024
Thursday, 15 August 2024
Seppuku Fx/Jordan Fontaine Memory Lapse
Another contribution by Jordan. Thanks mate!
PedalPCB 6 band EQ
Another contribution by Jordan Fontaine!
Schematic is avaible HERE.
This on is verified and good to go.
Frost Giant Electronics Little Acid Fuzz
Phew, loys of work lately so not much time for the blog and building lataely. A few people have sent me some new traces and new layouts. These will be uploaded today. First out is Little Acid Fuzz by Frost Giant Electronics.
Another Frost Giant PCB traced by Sergio. Based on the op amp version of the Little Big Muff from the late 70s. The internal Tone trimmer can easily be moved to the outside for a 2-knobber.
Sunday, 11 August 2024
PedalPCB/Chuck D. Bones Yankee Screwdriver Deluxe Turbo
Based on Skreddy Screwdriver but Mr Bones modified into quite something else...
Schematic is avaiable HERE.
Friday, 9 August 2024
PedalPCB / Chuck D. Bones Spunk-O-Matic
How about a MOSFET/Germanium Harmonic Percolator with some extra controls? And silicon/infrared diode clipping? Chuck D. Bones Spunk-O-Matic has it all...
Schematic is avaiable HERE.
Sunday, 4 August 2024
Aion Fx Traynor TS-50B Bass Preamp - ON HOLD
Schematic is avaiable HERE.