Tiptop Audio MODEL 258T Handleiding

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BUCHLA & TIPTOP AUDIO

DUAL OSCILLATOR MODEL 258

5cps20kc

5cps20kc

t

DUAL OSCILLATOR - MODEL 258t

Text from the Buchla 200 series catalogue from the 70's. Slight adjustments were made.

Processing input:

The processing control attenuverter

input permits control of pitch

scaling/inversion/expansion without

the need for a separate external

processor.

1V/Oct input:

Control Voltage input for 1V/oct

note tracking.

Frequency modulation control:

For adjusting vibrato depth or

creating clangorous or bell-like

tones, rich in non-harmonic upper

partials.

Oscillator frequency control:

Spans the audio spectrum of 5 Hz to

20 kHz with no range switching.

(The original graphic 5cps to 20kc

was only intended and noted to be

approximate.)

Processing control:

Used to set desired range of incoming

control voltage for expansion,

compression and inversion.

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.

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.

Eurorack 200 series

Size: 18HP - Depth: 45mm - Power: +12V 70mA / -12V 40mA

Product specificaties