IG00151 VCA Clone for Yamaha CS Synthesizers

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The clone is fully drop-in replaceable and is able to coexist with the original vintage chips in the same synthesizer. It can function as VCA and current source for envelope controller on M-cards, or control voltages for TRG boards (and on any other board that uses that chip). It has the same control voltage cutoff point and similar non-linear control curve as the original, so all the control sliders work the same.

The iG00151AP is a replicant of the rare IG00151 Voltage Controlled Amplifier (VCA) chip, which was used by Yamaha in their CS-series analog synthesizers and organs from the 1970s and 80s. The iG00151AP was carefully engineered from the original chip, retaining all of its characteristics and properties, including the peculiar non-linear control curve and cutoff, input and output impedances, and identical power consumption at the same gain setting. This makes the iG00151AP the only “clone” available today that is fully drop-in replaceable and is able to coexist with the original vintage chips in the same synthesizer. While the originals are getting more expensive and harder to find, the availability of the iG00151AP ensures that the CS-series analog synthesizers remain serviceable. One CS-80 synthesizer contains 210 of these chips!

Price: $19.95

Link: https://ebay.us/5wqbEO