I was late to make DIY builds of the Synthesis Technology e560 and e580 modules.  A post on the Synthtech email list alerted me to Dave Brown’s builds. E560 Deflector … Read More

This is the Rollz-5+ PC Board by Meng Qi.  The circuits follow fairly closely the original paper circuits, designed by Peter Blasser.  I am building it with modifications of my … Read More

Finally!  Quantisise with Blue Panel and Furman PL-8C power conditioner all together in the 8U EWI Tour Case.  I upgraded the power strip from the Furman M-8Dx to get better … Read More

Boards are all assembled for the Blue Panel.  Left to right: CGS113 Serge Wave Multipliers CGS65 Tube VCA/Timbral Gate x2 CGS67 Active Real Ring Modulator CGS81 Voltage Processor x5.5 2 … Read More

Here it is, finally wired and mounted in its 8U high EWI Tour Case.  The Quantisise panel wasn’t designed to fit this case; it just happened to (and it’s tight).  … Read More

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