MOGUE is a VCA and Mixer inspired by early Moog designs... The mixer section was inspired by the Moog CP3
Andrew has made some changes to get the outputs into +/-5V range and for using easily available components.
The old Moog schematics:
The LM394N
Bipolar Transistors - BJT
https://au.mouser.com/ProductDetail/Texas-Instruments/LM394N?qs=czFRc4EZNJgyK3N2awTVPQ%3D%3D
Another option are SSM2210s
The SSM221s & LM394Ns are matched NPN transistors. They are both obsolete.
One option is to replace these with Russian Clones: AS394 matched transistors.
Or you can try your luck with the Chinese ones on ebay.
I'm going to try using two BC547's first.
+ Transistor Matching
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Used this;
771-BCM857DS-T/R
orientation ??? the dot marks pin 1 ???
I'm not sure of the correct orientation.
I think the dot marks pin 1
Tayda
Links
+ NLC blog
+ official build notes & BOM
+ FB builders
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Used this;
771-BCM857DS-T/R
orientation ??? the dot marks pin 1 ???
I'm not sure of the correct orientation.
I think the dot marks pin 1
Tayda
Links
+ NLC blog
+ official build notes & BOM
+ FB builders
+ Wiki
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Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html
Click here to return to the NLC Build Index:
http://djjondent.blogspot.com.au/2015/03/non-linear-circuits-ncl-index.html
Did it work OK? I had a version of BCM857 that was too small for the footprint, so the VCA part didn't work. About to order the part # you used if it worked.
ReplyDeleteI havent finished it yet.
DeleteIm still waiting on parts from Europe.
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ReplyDelete