Ian Fritz Teezer Through-Zero VCO

MOTM

$380                Assembled Module

$250                Full Kit

$35                  Panel

$35                  PCB

$100                Component Kit

More info coming.

Documentation emailed with purchase.

See Richard Brewster’s module page here.

See David Brown’s module page with notes

on 15V modifications here.

Dragonfly Alley Project Page.

Sound samples from Ian:

One: Percussive sounds using Teezer Tri output with chaotic variation in frequencies.

Two: Dynamic depth synchronization of Teezer.

Three:  3/2 carrier to modulation frequency ratio. Teezer Saw carrier moduled  by Tri or Squ wave. Various modulation depths.

Four:  Bells and other percussive sounds with Teezer Sin carrier and deep modulation.

Five:  Teezer modulated by a VCO with a VC Saw-Tri shaper followed by a Threeler filter.  An ADSR drives the shaper and the filter.

Six: A DoubleDekka VCO dynamically modulating a Teezer with Sin out. Various levels of modulation depth and sync.

Seven:  Teezer Saw carrier and Tri FM modulation, in unison, various FM depths.

Eight:  Demonstration of Teezer sync locking over three octaves with modulation up to 1000%.

Nine:  Teezer at low Bias setting. Lin FM from fixed Tri wave.  Exp FM from Jerkster chaos generator.  VCA and Theeler VCF also controlled from Jerkster.

Ten:  A DoubleDekka VCO dynamically modulating a Teezer with Sin out. Various levels of modulation depth and cross coupling.

Eleven:  Demonstration of 1000% modulation of Teezer without then with sync.  Note minimal pitch shift without sync and minimal timber change with sync.