1. Detuned saw waves at unison. 

2. Detuned square waves at unison, then detuned, then tuned and fine tuned to an octave apart. 

3. Both sine waves, playing with original module depth exponential FM. 

4. Monitoring one sine wave and FM'ing it by sine, saw, and square waves at the factory module's FM depth. Then sine modulating at Extreme FM depth. Change that wave to square. Goes out to pitched noise.

5. Pitched noise via Extreme FM cross-modulation. Monitoring only one oscillator.

6. Pitched noise via Extreme FM cross-modulation. Monitoring only one oscillator.

258B Special Edition Basics

158A dual oscillator clone doing FM, two examples. The second opens with the waveform set to its mellowest, which is still a ratty triangle, not a sine. Extreme on purpose! Does subtle as well!

158A Try 1.WAV

Two saw waves in unison, modulated to show tracking ability. Then sines. Then one oscillator modulating another with random modulation. 

158A clone module audio

Buchla 410 Opto filter clone. Used with 266 +3dB slope noise, which doesn't have any bass. First it's controlled by the 266 Stored Random Voltages "full spectrum" output; second, just turning the front panel knob. 

410 LPF

A 158A clone going through the 410 LPF, no CV modulation but twiddling the front panel Frequency knob. Then, two filters in series for a deeper cutoff. 

Peake

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