• Revived Buchla Dual Oscillator 258 in Eurorack format
  • Each oscillator contains mirrored jacks and controls with only one difference between them: the waveshape control
  • OSC 1’s waveshape moves from sine to saw, while OSC 2’s waveshape moves from sine to square
  • Tini-jax and bananas have been replaced with 3.5mm Eurorack standard jacks
  • Waveshape controls feature an input for modulation
  • Processing attenuverter for extra scaling, inverting, and expansion of pitch
  • Coarse and fine tune controls sweep the oscillator frequencies range from 5Hz to 20kHz with original “cps” and “kc” description
  • 1V/Oct tracked pitch input

Tiptop Audio Buchla Model 258t

Dual Oscillator Model 258t

 198,00For European customers, please select your country to view the correct price including vat

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SKU: 57524 Categories: , ,
SKU: 57524
  • Revived Buchla Dual Oscillator 258 in Eurorack format
  • Each oscillator contains mirrored jacks and controls with only one difference between them: the waveshape control
  • OSC 1’s waveshape moves from sine to saw, while OSC 2’s waveshape moves from sine to square
  • Tini-jax and bananas have been replaced with 3.5mm Eurorack standard jacks
  • Waveshape controls feature an input for modulation
  • Processing attenuverter for extra scaling, inverting, and expansion of pitch
  • Coarse and fine tune controls sweep the oscillator frequencies range from 5Hz to 20kHz with original “cps” and “kc” description
  • 1V/Oct tracked pitch input
SKU: 57524 Categories: , ,
SKU: 57524

Tiptop Audio Buchla Model 258t

Dual Oscillator Model 258t

Two independent voltage-controlled oscillators. Each has one processing input, a frequency modulation input and a 1V/oct input.
Waveshapes, as well as frequency, can be voltage controlled. Model 258 oscillators feature low sine wave harmonic content, negligible settling error, and high short and long-term stability, even with rapidly changing ambient temperatures.

TRIMMERS:
There are three trimmers for each oscillator on the back of the module:

  • 1V/oct is the octave tracking trimmer and is set at the factory using high precision instruments.
  • SHAPE is the trimmer that set the sine wave, for the lower harmonic content of the sine wave.
  • VC WAVE SHAPE sets the response of the waveshaper to the incoming control voltage. Both SHAPE and VC WAVE SHAPE
    trimmers are used to adjust the sine wave purity.

Processing input:
The processing control attenuverter input permits control of pitch scaling/inversion/expansion without the need for a separate external processor.

Frequency modulation control:
For adjusting vibrato depth or creating clangorous or bell-like tones, rich in non-harmonic upper partials.

Processing control:
Used to set desired range of incoming control voltage for expansion, compression and inversion.

1V/Oct input:
Control Voltage input for 1V/oct note tracking.

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.

Oscillator frequency control:
Spans the audio spectrum of 5 Hz to 20 kHz with no range switching.

Depth

45 mm

Width

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