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 Post subject: Proprietary Moon Cougar
PostPosted: Wed Sep 12, 2012 8:22 pm 
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So yeah, this is a mashup (as the kids say) of a couple ideas. It's sort of like the Sun Lion, sort of like a boost-switchable Fuzz Factory, and it uses the same "proprietary chip set" from the good-old Retro Channel "The Fuzz". Okay, so it's neither proprietary nor a chip set, and is in fact a transistor array IC (LM3046). It's basically several low-gain NPNs inside an IC package. I tested gain, and they were all between 100 and 110. Mojo!

So basically this is a Linear Power Booster in front of a Fuzz Face with a simple output buffer at the end. There is a switch that toggles between boost+fuzz and just fuzz alone. I added some caps on the fuzz face trannies between collector/base to soften up the silicon sound a bit and sort or "fake" some capacitive leakage (like in a germanium).

The LM3046, and it's sister chip the LM3086, are no longer in production as through-hole ICs. But you can find them at a couple of the more popular surplus suppliers for pretty cheap. And we all know that discontinued = Mojo!

I have not tested this yet, but it looks pretty solid.




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PostPosted: Wed Sep 12, 2012 8:51 pm 
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Location: Byron Bay, Australia
Looks cool!
Chaulk me up for some boards :wink:

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PostPosted: Thu Sep 13, 2012 9:35 am 
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Sounds like it would be cool, Cougar me baby! :D


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PostPosted: Fri Sep 14, 2012 2:50 pm 
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I found these chips for $6 shipped from CHina on ebay.

ANyone know of an internet source that is cheaper?

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PostPosted: Fri Sep 14, 2012 3:24 pm 
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http://www.goldmine-elec-products.com/p ... ber=G32158

Just a little bit cheaper. ;)

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PostPosted: Fri Oct 05, 2012 10:17 am 
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got my chip in for this one! The schemo looks pretty much do-able on perf, I guess. What do you guys think?


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PostPosted: Fri Oct 05, 2012 12:24 pm 
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You might want to breadboard it first. I've not tested it in any way, although in theory it should work.

I'm getting some PCBs for it in the mail shortly. If you can hang on another couple days, I'll let you know if the circuit is good to go.

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PostPosted: Fri Oct 05, 2012 1:08 pm 
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sounds good, let us know if you get anything up and running.


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