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Poly-800 II Service Manual and Mods

2007-07-10 by narfman96

I was surfing Ebay yesterday when an interesting item caught my eye...

An original Poly-800 II Service Manual complete with schematics and 
parts listing. Whoohoo!!! I snagged this puppy without any 
hestitation. Now maybe it will be a bit easier to play around with 
these mods I've been trying to get sorted out.

I spent the better part of an afternoon shotgunning components in the 
feedback loop for the noise level mod without really affecting the 
drone frequencies I've been trying to eliminate. I'm thinking maybe 
there's a better place to control this level, like after the 2nd 
stage of the 5223 op amp before it goes into the VCA. If I get 
anywhere I'll post the results of my efforts. Has anyone listened to 
the sample I posted of the drone sound???? Any comments???? I know 
it's summer here in the states and everyone is off doing their own 
thing...

When I get this manual I can scan it if anyone is interested. I doubt 
there are many of these docs around nowadays. There are many other 
trimpots in the Poly-800 II that could be moved to the front panel 
once their function is understood. The 3 trimpots on the little 
daughter board have me wondering what they do????

Well back to playing around with my DarkStar. I found a Vocoda kit to 
install in this beastie.

->->->-> Mike, Keep up the great work!!!! You're still the number one 
man with a plan in my book! Someday I would like to see your program 
flowcharts Mr. Einstein. (I'm not being facetious.)

Fran

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