PWM demo
This is a demo of Tim Escobedo’s PWM. see my build page for more info about this circuit: Here is another song demo where the PWM was used on one track in the mix.
Tim Escobedo PWM PCB build
The PWM b Tim Escobedo shapes your guitar signal into a variable duty square wave. This is staple of synthesizers. Known as pulse width modulation or PWM. The sound is supper compressed fuzz. This circuit is a simple build. Tim…
New PCBs
I had a few new PCB projects manufactured. Here are three projects I had been working on. These were drafted up in Eagle. I had these made at PCBWay.com.the cost was about $45 for 30 boards. I order 10 of…
22/7 4069
First build of 2022! This is a 4069 version of RunOffGroove’s 22 The original uses the 4049 hex inverter. This the same circuit using the 4069. Both chips contain 6 inverters but the they differ in format and layout. The…
AionFX Quadratron LoveTone Doppelganger clone
I always build three of everything. I got three of these boards when AionFX released them. I built one and gave it away. I’m finally getting the other two finished. This is not straight clone of the Doppelganger it has…
Tim Escobedo’s PWM
Tim Escobedo was this wildly creative force in the early DIY Stomp Box community. His circuit snippets page was had a lot of really great ideas. One of the ideas there was the PWM, which stands for pulse Width Modulation.…
UBE Screamer 4069
This is a version of the UBE Screamer using the 4069 in place of the 4049. Essentially these chips are the same. They both contain 6 inverters. The 4049 is a 16 pin DIP while the 4069 is a 14…
22/7 4069
Here is a version of RunOffGrooves 22/7 using the 4069. The original circuit uses the 4049 Hex inverter. The 4049 is a 16 pin dip with 6 inverters. Here is the 4049UBE data sheet. You can see it has 16…
Another fail!
Here is a UBE Screamer with blend knob. I left a resistor out of the mixer and mixed up the Blend and Gain labels, double fail! As long as I’m going to screw things up I like to go all…
UBE Screamer v2
I made an update to the RunOffGroove UBE Screamer from a suggestion in their notes. This version adds a mix control the blends some of the original signal with the distorted signal. The original uses Rx to set a fixed…
Weston Audio AD110
I built this as a DIY project. They offer it assembled also. It’s a Eurorack adaptation of the drum sounds from the Boss DR-110. All the sounds are analog, not samples. The project comes as three PCBs and a front…
PCBs with pots and LED
I just built a PCB project without the LED taken care of on the board, what a headache! In the old days everything was like that but we have evolved since then! in my most recent projects I have been…