Mike - contact microphone preamp card for the Music Easel For example it would be

For example it would be possible to have the first few stages used as an "introduction"

Retro Program card info from Buchla USA

multiple band-pass spectrum filters (equivalent to voltage-control paramteric

From an early catalogue:

Mike - contact microphone preamp card for the Music Easel For example it would beMike contact microphone preamp card for the Music Easel Mike is a microphone preamp card with a piezo contact mic built into the panel. With Mike, you can bring environmental noise and feedback into your Easel, inspired by the early days of electroacoustic music in Paris and Cologne, and by the contact microphone and phonograph cartridge experiments of John Cage, Gordon Mumma, Robert Ashley and Nicholas Collins. The concept idea is based on Tom