◊ Historic Buchla Modules

Buchla pages > Buchla 100 modules > 158 Dual Sine-Sawtooth Oscillator

☰ Buchla 100 Modules:

101 Cabinet
102 Dual Stereo Locator
106 Mixer
107 Voltage Controlled Mixer
110 Dual Voltage Controlled Gate
111 Dual Ring Modulator
112 Touch-Controlled Voltage Source
113 Touch-Controlled Voltage Source
114 Touch-Controlled Voltage Source
115 Power Supply
117 Dual Proximity Detector
120 Distributor
123 Sequential Voltage Source
124 Patchboard
130 Dual Envelope Detector
132 Waveform Synthesizer
140 Timing Pulse Generator
144 Dual Square Wave Oscillator
146 Sequential Voltage Source
148 Harmonic Generator
150 Frequency Counter
155 Dual Integrator
156 Dual Control Voltage Processor
157 Control Voltage Inverter
158 Dual Sine-Sawtooth Oscillator
160 White Noise Generator
165 Dual Random Voltage Source
170 Dual Microphone Preamplifier
171 Dual Instrument Preamplifier
172 Dual Signal Leveler
175 Dual Equalizer - Line Driver
176 Dual Hiss Cutter
180 Dual Attack Generator
185 Frequency Shifter
190 Dual Reverberation Unit
191 Sharp Cutoff Filter
192 Dual Lopass Filter
194 Bandpass Filter
195 Octave Format Filter
196 Phase Shifter

Model 158 Dual Sine-Sawtooth Oscillator

Two independent oscillators in one unit. Frequencies are continuously variable from 5 cps to 20 kc and may be controlled internally or with externally applied control voltages. Waveshape is continuously adjustable from sine to sawtooth; oscillators may be wideband frequency modulated.

DIY Resources

Schematics:

Early Hand drawn version (from Pauline Oliveros's copy of 100 Series Manual)
Rev. A, 4/1/68; all transistor
Rev. B, 11/17/70; uses UA726 transistor/oven (courtesy of Magnus Danielson)

Builds: David Brown's essential build/repair notes; Mike Peake's build notes with PCB artwork from his Ebolatone blog.
PCBs