2 x exponential VCOs |
Saw and square signals, 1V/octave.
Based on a circuit designed by T.W.
Stride (Wireless World, october 1977)
schematic |
1 x linear VCLFO |
Square, triangle and sine signals, V/Hertz.
Based on an application note of the ICL8038 waveform generator
schematic |
1 x VC ramp generator |
Ramp generator, V/Hertz.
Based on PE
modular synthesizer (1975)
schematic |
1 x VCF HP-BP-LP |
The now famous Steiner-Parker VCF, designed by Nyle
Steiner (Electronic Design, December, 1974)
schematic
I invite the DIYers to visit my page dedicated to this very filter,
there they will find an improved version.
|
1 x HP filter |
A classical source controlled filter, 12db/octave
high-pass filter
schematic |
1 x VCA |
A differential pair of transistors with a voltage
controlled current
source.
schematic, lost origin |
1 x balanced modulator |
A very classical design based on the µA796
(ancestor of the LM1496).
schematic |
2 x AD shape generators |
Attack & decay (10ms to 10s).
schematic |
1 x noise generator |
White and pink noise.
schematic, lost
origin |
4 x voltage processors |
1 x voltage adder
1 x voltage subtractor
2 x voltage amplifiers
schematics |