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Linear VCA

Simple Linear VCA using 3OpAmps and one PNP.

Courtesy/Thanks to: Mikko Helin

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Files
linvca.jpg
   Schematics for a Linear Voltage Controlled Amplifier
low-cost_15-w_amplifer_-_ian_hardca
   
Links
www.uta.fi/~helin/
   Mikko Helins Electronic Music Technology Pages
Manufacturers
Mikko Helin
   
Parts used
CA3080
   2MHz, Operational Transconductance Amplifier (OTA)
uA 741
   Frequency-compensated operational amplifier
2N3906
   PNP switching transistor