DIY

SSM2164 Dual VCA Board

I needed six DC-coupled linear VCAs for the Quantisise project.  I discussed my requirements on this Muffwiggler forum topic and decided to use three PC boards, purchased from Dr. Sketch-n-Etch.  … Read More

Two of twelve sample and holds

Here is a CGS SSG board, assembled as a dual S&H with a one-shot circuit.  It’s the first of six identical boards for use in the Quantasise. The SSG (Smooth … Read More

Stand Alone Power Supply

I built a stand-alone power supply that delivers +/-15 volts @ 800 ma to use as a bench supply for testing modules under development, and also to use as the … Read More

Quartussy

After I had sussed out the Cocoquantus schematic and understood the internal relationships among the five oscillators that Peter B. calls the Quantussy section, I began to wonder what it … Read More

CGS Serge Wave Multipliers

The CGS Serge Wave Multipliers is the fourth and final module in my CGS Serge banana jack panel.  Please read Ken Stone’s CGS 113 notes. The board contains three independent … Read More

CGS Serge SSG

This is my take on the legendary Serge Smooth and Stepped Generator (SSG).  I received the SSG PC board as a compliment from Ken Stone, who designed the board.  The … Read More

CGS Serge Negative Slew

Quantity: 2 The Serge Dual Negative slew is one of my favorite 1970’s Serge modules.  Ken Stone made the CGS 82 PC board. The output tracks the input and gives … Read More

CGS Serge DC Mixer

The CGS Serge panel had room for one small module, so I added this little mixer.   The simple design provides two attenuated inputs, plus a bias offset pot with a … Read More

CGS Serge Project Begins

My current project is underway. The panel was completed today (click the image for detail), but it’s only a facade. Behind the panel it’s empty. All of the modules are … Read More