GEM Instapiano

GEM (Galanti) Instapiano
GEM (Galanti) Instapiano

This is a simple electronic piano from GEM (Galanti Elettro Musicale), an Italian company that previously had made a lot of combo organs.  It uses a concept similar to that of a combo organ, with divide-down architecture (using frequency divider ICs this time though) and passive filters to create the four sounds: Piano, Harpsichord, Honky Tonk, and the Bass sound which is always a different sound from the rest of the keyboard and cannot be altered.  The addition of a simple AR envelope makes it a “piano” instead of an organ.

Work done: replaced diodes in bridge rectifier diode ring and the small number of electrolytic capacitors in the instrument, replaced one bad divider IC, cleaned key contacts and buss bar, repaired a few broken plastic keys and replaced one damaged key contact spring.

Tip: this is a general-life tip. I just want to tell anyone reading this to stop messing around with super glue.  Switch to two part epoxy and don’t look back.  I use it constantly, to repair everything from synth keys to houseplant pots that my cat knocks over.  Just yesterday Darian used it to fix his glasses.  Every time I use it I lament for the fools still trying to repair things with super glue.

One thought on “GEM Instapiano”

  1. Ne ho uno uguale, non funziona, qualcuno può inviarmi lo schema elettrico? O le informazioni relative per trovarlo? Grazie
    Il mio indirizzo email

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