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Product information "Buchla - 256e Quad Control Voltage Processor"
The 256e is a fourfold CV-processor. It does not only allow a simple attenuation of CV signals. It can also be used to mix and fade control voltages, scale and invert them, and provide offsets. With the help of an additional breakpoint, the transfer curve can moved away from purely linear characteristic.
Module 256e consists of four identical CV processors. Each processor has two inputs, which can be selected manually and via CV. Of course you can also use two CV sources for crossfading or use this section as a kind of "Index VCA". The result of this will then move into the actual transfer function. By means of two potentiometers you can set which voltage is to be output at the input of 0 Volt and which voltage is to be output at the input of 10 V. The result of this transfer function is the "Index VCA". To go through this functionality:
If the first knob remains at 0 and the second knob at 10, the signal is left unprocessed. If the first controller remains at 0 while the output voltage is reduced to 10 volts by the second controller, this is an attenuation. If the output voltage at 0V input voltage is increased with the help of the first controller, an additional offset is obtained and the scaling is changed. If the first regulator is set to 10 and the second to 0, this means that an input voltage of 0V results in an output voltage of 10V, while an input voltage of 10V results in 0V at the output. The result is an inversion of the input signal.
In addition, a breakpoint can be inserted via switch, which is also defined by input voltage and output voltage and leads to a non-linear transfer curve.
All parameters can be stored and recalled using the preset manager in the 206e or 225e modules.
Your desire is a Buchla 200e system? Schneidersladen is the official Buchla service partner for the EU and Great Britain. We support you in planning your 200e system, import goods from Buchla USA and help competently with questions, problems and repairs.
Please note: Buchla 200e products may have lengthy waiting times, as they are manufactured in small quantities only.
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Pioneering synthesizer design since the mid 1960s with Morton Subotnick and the San Francisco Tape Center, Don Buchla has been responsible for the invention of the sequencer, low pass gate, random voltage generators and the complex oscillator, among others. Shortly before his passing in 2016, his rights were acquired by Australian holding company BEMI (2012-2017) and since 2018 is operated by Eric Fox of Buchla USA, based in Minnesota. Buchla USA offers the whole 200e series catalog and boats, as well as the iconic Music Easel.
