images via this auction
"The Radio Shack Realistic Concertmate MG-1, Model 42-4000Radio Shack Concertmate MG-1 Specifications
- Type: Synth/ keyboard/
- Synthesis Type: Analog Subtractive
- Polyphony:
* Max: 1
* Typical in use: 1
- Multi-timbral (number of parts): ?
- Oscillators per Voice :
* Min : 1
* Max : 2
- Controllers : Pitch+ mod
- Keyboard :
* Number of Keys : 37
- Inputs and Outputs :
* Number of Audio Outs (excluding Phones) : 2
* Number of Audio Ins : CV s trig
- Upgrade Options : Filter input mod
BONUS: we are also including a FULL SET of sliders, switches and caps! Although this unit is fully functiontional, it is well known that the foam around the switches turns to goo on these units. They were also built using rather cheap parts at the factory. Therefore time has not been kind to the switches and sliders. BUT DON'T WORRY - we are putting a COMPLETE SET of replacements in the package in this auction... woooo hoooo!!!!!
Here is a fabulous source of information, including the history of the MG-1.
Here are some other resources for this keyboard:
Download owner's manual (1.3MB)
Download circuit board diagram (4.3MB)
Download key jack diagram (2.5MB)
Realistic MG-1 Service Manual.zip"
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