Modded Realistic Concertmate by Moog MG1 Demo

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Published on Oct 6, 2012 by fishjaco

via this auction

"This is a 5 min. video of a modded MOOG MG-1. SOME LEVELS DEMONSTRATING THE FEEDBACK CIRCUIT ARE LOUDER. So watch your ears and speakers.

I have posted this to promote its sale but will leave it up as it may be useful to those considering doing these mods. There are plenty of MG-1 videos demonstrating typical functions and super sweet licks. This is not one of those.

Mods are: Tone Source VCO 1&2 tuned an octave lower than possible with stock synth, variable pulse width for one Source Tone VCO 2, filter feedback loop switch and attenuator.

Sorry for my lame narration. I didn't write a script. You can probably get really drunk if you take a shot of whiskey every time I say "so".

I hope you find this informative. Thanks for watching!"

via this auction

"What makes this particular synth special is that it has been modified to augment its utility as a bass synthesizer.

Mod 1: Tone Sources/VCOs 1 and 2 have been tuned an octave lower than the stock version can be (modified tuning resistors). It has been tuned and scaled and is ready to record.

Mod 2: Variable pulse width has been added to the square wave of tone source/VCO 2. It used to be thin and buzzy; now it can be thick and juicy (but go back to thin and buzzy or anywhere in between that you want)

Mod 3: The usual 1/4" output and 1/4" input to the filter jacks

Mod 4: A filter feedback circuit with engage switch and gain knob has been added. (note: The filter feedback gain knob can sometimes sound scratchy but the pot is clean. This effect likely has something to do with the fact that the filter circuit isn't used to getting a variable feedback gain signal. It is never scratchy when the knob is not in motion; only sometimes, not all the time, when it is turned while playing notes.)

Finally, the entire bottom board with the poly section and power supply has been completely recapped to ensure reliable performance for years to come. The infamous black foam has also been removed.

The bottom line is that this MG-1 specimen is way cooler that 99% of those out there because of these mods. However, you should be aware that one slider cap is missing and replaced with a make-shift one. Also, the adhesive securing the plastic side panels to the face plate feels a little loose. This is unimportant because the chassis is screwed together. Very minor stuff but no surprises for you."