DIY

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 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

Polyglot Patch Cords

The MOTM Modular is 5U with 1/4-inch phone jacks for patching. The Cocoquantus has screw heads for alligator clip patching. For patching between these I have made up some simple … Read More