• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Moskidos on the way.

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cwujek

cwujek

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Joined 2007
#1
Well, I've taken the plunge and have started laying out parts for two pairs of mono Moskidos. Loved the idea of the Aikido driving a Class A solid state power amp. I have read through different posts on components choice, and have a pretty good idea of some recommended parts plus some I just like myself. Since I am building two pairs, I thought that I might make one pair according to Bob's original schematic (BUZ900/905s), and one pair using the IR MOSFETs (probably without the feedback circuit). I would almost rather go with both pairs of the tried and true BUZ900/905s, but the cheapest I can find them is about $20 per MOSFET, which actually isn't that bad (I've built many tube amps, and I easily spend more than this on output tubes/transformers). But the IR MOSFETs save considerable money, plus I will be able to give some feedback on how they both sound in comparison. How many people have built Moskidos thus far? I'll be trying some interesting components/layouts, I have some Russian teflon capacitors I'm itching to try, and a copper case that should look very nice with these amplifiers. Anyone have a good place to get big heat sinks? Big copper heat sinks would sure look nice....may have to fabricate some myself...🙂

BTW, props to Bob and John Broskie for all the design/work they've done, I'm pretty excited to get this going.
 
#3
kacernator said:
Any progres so far? I would be interested to hear IRF/BUZ comparision.
Click to expand...

I'm making progress, just waiting on the heatsinks. Instead of going dual mono, I decided to go for a stereo setup. I have built the aluminum chassis with a copper face plate, once I get the heat sinks I'll be sure to post some pictures.
 
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