[sdiy] Using LF398 for Keyboard S&H

[Ken MacBeth]

Hi All! I just picked up a beautiful 5 octave dual contact bare keyboard and would like to do a 'one off' keyboard controller. I've actually done this before using the basic Prodigy circuit, but at time the hold over time drooped a bit. It has occured to me to use an LF398 Sample and Hold amplifier to do what the the fet and the jfet opamp seem to be doing in the Prodigy keyboard circuit- any opinions/experiences/examples of doing this, anyone?

Best regards, Ken



http://www.macbethstudiosystems.com
Home of the M3X Analogue synthesizer...

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