Found this Muson toy Synthesizer in the storage shed. Fired it up and it is in proper working order. Unfortunately it’s missing one of the sequencer plugs and currently only plays 9 of the 10 notes. This prompted me to open it up and try to determine the resistor value of the missing plug.
The 1978 Muson Synth toy. Perfect working condition, but missing one of the sequencer step plugs.
I poked around and found several interesting bends so I’ve decided to build a new custom case for this. I’m currently in process of removing all the control components that are mounted directly to the board and will move them to a new control panel.
The electronics are complete and I’m finalizing the case construction and control panel layout. Hope to have it making noise within a week. It’s been on hold waiting for components to arrive so I’m looking forward to getting this one playable ASAP. Check back soon.
Finally getting around to wrapping this up. A four oscillator noise machine controlled with a joystick. I had bigger plans for this one, but the control panel is getting out of hand. Looking forward to wrapping it up. Details to come…
Finished the Stepped Tone Generator (aka, the Atari Punk Console) over the weekend. It’s is built from a Getlofi.com atari punk console board combined with dual 555 timer circuits that send CV to the APC. Housed in a custom case.