-
Tremolomatic-XXII
This project came from the Stompoxology newsletter Volume 13 Number 2 published by Nicolas Boscorelli around 2000. I can’t find a copyright date on the issue. Stompboxology was very interesting and mysterious. The Stompboxology newsletters along with the Stompbox Cookbook would be hugely popular today. But they missed the timing for their prime audience. Nicolas…
-
Shiva Sonic
I received an email the other day from someone who had bought some pedals from me, it must have been 10 or 15 years ago! I was really happy to hear they were still using and enjoying them! The reason for the email was to ask what the pedals were? I said send me some…
-
PWM demo
This is a demo of Tim Escobedo’s PWM. see my build page for more info about this circuit: http://www.super-freq.com/tim-escobedo-pwm-pcb-build/ 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 Escobedo is sort of an anomaly. He contributed an amazing collection of ideas vis his…
-
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 each of three designs, they sent me 11 of each, which was a pretty reasonable…
-
22/7 4069
First build of 2022! This is a 4069 version of RunOffGroove’s 22/7. 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 4049 is a 16 pin DIP and the 4069 is a 14 pin DIP. One…
-
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 some changes that are updates and improvements, and a few changes that are opinionated. Read…
-
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. This circuit converts your input signal into a square wave and varies the amount of…
-
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 pin DIP. Electrically the should the same but the pin arrangement is different. The original…
-
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 pins with 6 inverters. There is a power Vdd pin 1 and ground Vss pin…
-
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 the way! This enclosure looks good! I like the logo outline and the pot labels…
-
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 mix amount. The notes suggest a value of 100K to 470K for this resistor with…