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Couple amps brought to life

post #1 of 4
Thread Starter 

So happy that both my projects worked out well and just in time for Christmas, had to post about them.

 

My Starving Student 12au7 (Built while waiting for parts for the M3, it literally took less then 24 hours from beginning to end)

 

Built in a cigar box that just happened to say 'The Culture' on it, felt it kind of fitting.  Used 1% resistors and Nichicon Caps, getting in a roll of silver coated Teflon wire which I will then upgrade to, though most of it is P2P.  12au7's don't glow very well so add some LEDs under the tubes.

 

SSamp1.jpg

 

 

Next my M3, built in a custom made enclosure, with some LED lighting.  All Nichicon Muze caps, 1% resistors, matched pairs for the  MOSFETS, standard Alps 'Blue Velvet' caps.

 

Made a custom capacitance multiplier power supply running at 30VDC.  Also a self programed ATTiny85 to run as a momentary push button driver and also as a delay to turn on audio two seconds after power on, and turn off audio two seconds before power down. (Don't really need warm up, just to avoid any pop or noise)  

 

RCA's in rear with a 1/8" jack in front for quick hook up to iPod/iPad, etc.

 

Pics:

 

m3.jpg

 

m3i.jpg

 

Problem now is I'm thinking about selling both to build a B22 LOL!

 

post #2 of 4

Nice work.

 

The B22 won't disappoint wink.gif

post #3 of 4

Do I spy a CPU heastink ?

post #4 of 4
Thread Starter 

Yes you do!  It's from an old G3 to G4 upgrade card, works quite well for the two mosfets, gets warm but never hot.

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