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 mixer, two 2:1 ster...

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

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 built-in Volca sequencer...

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

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 he tried just using...

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

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 point. I couldn't have...

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 thought it was worthy ...

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

The Hum was caused (of course) by faulty capacitors. In this case it was the filter capacitor on the negative bias voltage was a complete open circuit, causi...

I came across a vintage tube amplifier on a local Facebook trading group, that piqued my interest. An ELK (Echo) Pro-Sonic EB-103 from 1969. The trader had b...

A friend of mine brought me this fairly rare Vancouver-made amplifier to fix up. It had some scratchy pots, but more importantly it was made in the “Widow Ma...

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