GEM DSK-7 build-in demo

Wersi Comet Magic Fingers MFX 5 demo

Is this the end for the Wersi Comet?

"Louise" - on Wersi Prisma DX-5

Restoring a Yamaha PSS-20

"Jive talkin' " - on GEM DSK-7

What in the world is a 'Williamstone' keyboard?

"Raising my family" - in a somewhat denser sound compared to what I usually do

"Plus de distance / More than distance" - on Yamaha MC-200

"Wired for sound" - on Wersi Prima DX-5

"When the going gets tough" - on Yamaha HE-8

"Ces vieilles chansons que j'aime" - on GEM PSK-7

Square wave adding synthesizer - part 3: The filters

Square wave adding synthesizer - part 2: The envelope generators and LFO

Square wave adding synthesizer - part 1: The waveshaper

"Satin doll" - on the slightly warped GEM DSK-7

"Atlantis" - on GEM DSK-7

"El Negro Zumbon" - on GEM DSK-7

Making an NE555 based synthesizer - part 5: The case

"Nikita" - on GEM DSK-7

GEM DSK-7 build-in demo

"I've been waiting for you" - on GEM DSK-7

Making an NE555 based synthesizer - part 4: The mixer

Making an NE555 based synthesizer - part 3: The sync'ed oscillator.

Making an NE555 based synthesizer - part 2: The envelope generators