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Messages - thomasha

#256
Requests / Re: Sub-mini tube amps
October 30, 2013, 12:01:09 AM
Well, after murder one I tried to build my own tube amp combo...
based on jcm800 amplifier, using russian submini tubes, with PP triodes and LTP PI.
I used Dmitry's power amp schematic, and made a PTP layout using nails as turrets.
The speakers are old oval computer speakers, and I used a big muff tonestack instead of the TMB.
The power supply is the max1771 SMPS, from frequency central projects, and a 12V, 2A wall wart.
I made some videos with my crappy phone cam:


Clean sound

High gain


I think removing the 470pF caps across the grid stoppers would help with a little more low end.
Thomas