EARTHQUAKER DEVICES: Disaster Transport Jr

EQD Disaster Transport Jr vero layout v1 e3979ee03748

This is my first layout for a PT2399 based delay.  The Earthquaker Devices Disaster Transport Jr.   It’s a pretty cool delay, with some very usable sounds – the addition of the tone control certainly helps, especially if you like something a little lo-fi sounding, or just as a method to filter out noise on longer delay … Read more

PETE CORNISH: ST-2, Modded (Simplified)

PET CORNISH ST 2 mod vero layout v1 14bbf1e73b4b

This is a simplified version of a Pete Cornish ST-2 (based on the Colorsound Overdriver).  I did the full layout, and it it kind of large, and double buffers are not for everyone. So no buffers, and the power supply filtering is simpler.  I’m sure the proper Pete Cornish version is probably better, but if you prefer something smaller and simpler, … Read more

PETE CORNISH: SS-2, Vero Layout, Modded Buffer, SS-3 Values

PETE CORNISH SS 2 vero layout modded buffer v1 62405f529c66

Like the very lengthy title below suggest, it’s a Pete Cornish SS-2 with mods.   After finishing the SS-3, they’re almost the same, so I thought I would also do a SS-2 layout. Changes Swapped the Cornish buffer for a standard opamp based buffer Ran the reference voltage through the spare opamp Used a quad opamp … Read more

PETE CORNISH: SS-3 Soft Sustain, Vero Layout, Buffer Mod

PETE CORNISH SS 3 vero layout with buffer mod v1 f164d482c0a9

The Pete Cornish SS-3 is one of my favourite overdrives – so I thought I might make another one with a different layout and buffer. Changes Swapped the Cornish buffer for a standard opamp based buffer Ran the reference voltage through the spare opamp Used a quad opamp instead of 2 x single op amps … Read more

EARTHQUAKER DEVICES: Grand Orbiter Phase Machine

EQD Grand Orbiter vero layout V2 29b626b90670

The Grand Orbiter Phase Machine is a four-stage OTA phaser, with options for vibrato or phasing (a bit like a Univibe). Not exactly a small board, but not too much to take on either.  MLC caps might be a good idea for some of the 1uf caps to save space.  Currently unverified.  I have reviewed the … Read more

MUSITRONICS: Mu-Tron Phasor II

MUTRON PHASOR II vero layout V1 56dabb367ea5

A classic phaser from the mid-seventies – the Musitronics Mu-Tron Phasor II.  It has the same six-stage phaser as the Bi-Phase, with less happening in the oscillator section.   This is the hardest layout I have ever done and took some time to finish and check…  including some time wasted after I started using a layout with … Read more