Not sure what the purple dial does, but all other buttons responded when tested.
Vintage 1990s Boxed Habitat Zip Chrome Wire Metal Adjustable Office Footrest
Vintage 1990s Meinl PM2 Pair of Concert Maracas Percussion Instrument
Vintage 1990s Yamaha PSR-3 Portatone Keyboard - Retro FM Synthesis - Tested
Vintage 1990s Kay Solid State Guitar Amp Practice Amplifier K-840
Vintage 1990s Job Lot 3x Recone Kit Celestion G12M Greenback 8ohm T1220/R 6402
Casio CT-680 Vintage 1990s Synthesizer Keyboard
