Verbos Model 258v Dual Oscillator

via this auction

"The Mark Verbos Model 258v Dual Oscillator is designed to duplicate the sound and response of the highly regarded Buchla 258 and does so. The 258v is fully compatible with Buchla 200 and 200e systems. It connects to the same power supply, outputs the same signal levels, and responds to the same voltage control. You have never heard gurgling, burping, watery, klanging FM like that produced with the 258v. This module features two seperate VCO's, continuously tunable from 5 Hz to 20 kHz. Each VCO has two processing inputs and a frequency modulation input.l Waveshapes as well as frequency can be voltage controlled. Model 258v oscillators feature low sine wave harmonic content. There is no memory card with this module, it is fully analog and cannot store presets. Other features include:

* Processing inputs: Two processing control inputs permit multiple control of pitch without need of separate external processor.
* Processing controls: Used to set desired range of frequency control. Expansion, compression, and inversion of scales are accomplished here.
* Frequency modulation control: For adjusting vibrato depth or creating clangorous or bell-like tones, rich in non-harmonic partials.
* Output: Signal amplitude is +4 dB. Output impedance is 600 ohms.
* Oscillator frequency control: Spans the audio spectrum of 5 Hz to 20 kHz with no range switching. ( Applied control voltages can extend limits to .1 Hz and 30 kHz.) (this means that the modules also function as VCLFO's).
* Waveshape control input: Waveshapes can be varied from sine to saw (osc 1) and sine to square (osc 2). Voltage control of waveshape enables powerful dynamic control of timbre."