Simple Gates is a dual low pass vactrol gate module with 3 filter types and a 2-pole mode in a 4HP DIY Kit. Inspired by classic Buchla...

I love mjecke's Karaoke Delay idea, a panel that converts a dirt cheap delay module to eurorack. I wanted to try to find a use for the...

Filther is a CEM3320-based 4-pole low pass Voltage Controlled Filter, with CV control over resonance,V/Oct Tracking, and 2 resonant...

Satan oscillate my metallic sonatas The Atari Goth console is a beginner-friendly patchable drone synth, based on the popular and iconic...

The Samson M30s are super cheap "monitors". They're quite capable, but I felt like they could be improved. There is a switch on the back...

Commissioned build. Switches two sets of stereo pathways to a set of outputs according to MIDI program change commands. Like a...

The Nerve Center Eurorack Module is a 10HP, easy to build and adaptable mixer able to meet any of your mixing needs. It can be a 4:1 mono...

Two SPX90ii units came in for repair. The first one had the common power supply failure (recap recap recap), but the second had a funky...

The Active Multiple Kit is an easy-to-build, low parts count eurorack module that lets you create perfect copies of voltages or audio...

Adding a Constant Current charging circuit to the Boss Katana Mini

Replacing the faders and op-amps on a vintage reverb unit. Using modern replacements and adapters to make it work.

A rough guide on how to add a Dry Kill switch to your Carbon Copy. Proceed at your own risk

A friend asked about modding his Volca Beats to allow individual trigger outs. This would let him sequence eurorack modules with the...

The big repair job of the week is a Roland Super Jupiter, but more specifically the companion programmer MPG-80. The customer's...

A customer brought in a Casio SK1 this week with two requests: 1) Replace the 1/8" headphone out with a 1/4" mono line out. Customer said...

The Passive Multiple Kit is the perfect introduction to synth DIY and soldering in general. With 8 components total and very little...

I'm so excited to say that CCTV is now open! The new shop is at 2808 Rock Bay Ave in Victoria BC. It was such a journey to get to this...

A customer brought in a DM-300 with broken switches. This is a really interesting piece of equipment that I've never seen before, so I...

Kurt Ballou of Converge recently posted his new business card which is in fact a PCB for a distortion pedal titled the Brutalist Jr....

I originally picked up some broken pedals so I could use the cases for my own prototype designs. However, this Tokai Analog Delay would...