Moog oscillator driver

The Envelope Generator requires an S-trigger to operate. External sources must be converted to the S-trigger format via the Interface. External sources must be converted to the S-trigger format. Both fixed and variable levels can be obtained from front panel output jacks. Multiple frequency control inputs can be plugged into this module in parallel. All waveform outputs can be used concurrently if desired.

All manual controls on this module can be moved or switched during operation. This module functions as both an audio or control voltage generator. Two voltages are generated: one for frequency control and one for rectangular wave duty cycle. Manual adjustment to the Frequency and Width Of Rectangular Wave pots changes the nominal frequency and duty cycle of all connected B's in parallel. Control inputs for frequency and rectangular width are summing.

They are wired in groups to a common A Oscillator Driver, which provides both exponential frequency control and rectangular width voltage control. Like the Oscillator, this is one of the building blocks of analog synthesis.

Previous Section Next Section. Moog Company Products and Inventions. Heathkit GHA. Soldering iron and wire, ca. Along with an oscilloscope, a soldering iron was his main tool. He would mess around with circuits until he got the sound he wanted.

His familiarity with music meant he could partner closely with musicians such as Herb Deutsch, Wendy Carlos, and Keith Emerson to improve his designs. Most of his early customers were located in New York City, so he would often take a Greyhound bus to the city along with the cargo of a synthesizer in cardboard cartons.

Upon arrival in the city, he would take a cab and install the synthesizer in their studios himself. It contains a control voltage summer and a switched frequency control for either semitone or octave.

Module cabling is wired in parallel so that a single A can control up to three B modules. The gain of the module is 0.

Why 0. I suspect they simply reduced the gain to have adequate headroom with the restricted negative supply voltage.