Moog Music Forum

Chris has been very responsive via email, so I'm sure he'd be able to tell you right away whether he would be interested/able to do that TOS chip.

I have nothing but good things to say about chipforbrains and his slider replacement kit, which I got for my MG-1. He seems the only game in town for ...

Hey Friends,

A while back I bought a crippled Realistic/Moog MG-1 and quickly became educated as to the common problem with them: failing MM5823 divider chips. One of mine was dead.

I made a couple forays into resuscitating it. A good friend helped by coming up with a rather amazing off-the-top-of ...

Thanks . . . I'll stop crying.

And now back to our regularly scheduled programming. . . .

Vacation is understandable, but the last item he sold was TODAY at 11 o'clock, about an HOUR BEFORE I JOINED EBAY! That just makes me choke with disbelief. . . .

Hi Friends,

WTF! Twenty minutes ago I joined Paypal, then joined Ebay, both for THE EXPRESS PURPOSE of buying the MG-1 upgrade parts from chipforbrains. Immediately went to Ebay to do the transaction: chipforbrains HAS NO ITEMS for sale! WTF! And since I'm a new Ebay member I'm prohibited from ...

They don't source much current, so resistors on their power pins might be an easy cheat.
That sounds do-able. Something in the 100-ohm range maybe?


For all we know, these chips might fail because another chip failed at one time and took down a power rail. I have no idea what these dividers ...

Hi Kevin,

Okay, well, what you say about the reliability of the Liberations and others makes sense, and tilts the scale of blame back again to the chip. I wonder what short-circuit protection on one of those chips would entail--diodes on every divider output?

As far as your Ebay offer, I only got ...

Hi EEG: If I go the chipforbrains route I'll be sure to thank him as you said.

Hi MC: Thanks for your input about the Liberations. This tilts the scale a little towards evidence of a design flaw in the MG-1. If the chip is sensitive, maybe some current protection resistors on the power rails and ...

Hi Friends,

I just got an MG-1 and so far it's a mixed blessing. My nerves were steeled to get inside and clean out the notorious Black Muck, and lo and behold, there wasn't any! At some point in this unit's lifetime, somebody took out the foam before it got bad. There wasn't even any post-cleanup ...