Quantisise has four outputs per section (VCO, VCA and two S&H outputs).  Each is monitored by a different color LED, green for the VCO, yellow for the CV S&H, red … Read More

Here is a wide range, non-precision, and somewhat unstable voltage-controlled oscillator (VCO) with just a pot for initial frequency, a CV input attenuator, a triangle (-0.5 to +4.5 volts) and … Read More

Here’s the populated front panel. It is just for show at this point. A view from the back. And the final block diagram for one of the six sections.  It … Read More

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

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

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

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

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

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