Post your DIY Musical Instruments/Amps here!

My current bass was built by Tom Clement - swamp ash fretless, Ipe fingerboard with Nordstrand reverse-P setup with J-pickup at the bridge. My own preamp (using 2n4416 jfets - got the idea to try them from Fdeck's bass rollloff box. With 18volts, they sound great).

I have built several Greenboy cabs (12 and 15s) - The crossovers have been modified to use a BMS tweeter that I like a lot.
 
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Roland amp with speaker with DIY aluminium foil on loudspeaker cone for more stiffness and less resonances enhancing the sound a lot.

https://www.diyaudio.com/community/...loudspeaker-sandwich-cone.402917/post-7519835

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See also

https://www.diyaudio.com/community/...cal-instruments-amps-here.164361/post-7405603
 
I figured I'd post some of my DIY stuff. Below is a single-ended EL95 amp with a single ECC8_ / 12A_7 in the preamp. Simple stuff. The tone knob is a bridged-T Framus-style mid control. It is followed by the Volume pot that has a 3-position bright switch tied to it. For the chassis, I used a Hammond 1590DD enclosure.
P_ror.jpeg
 
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Something topologically similar to the previous amp I posted: input stage, Framus-style mid control, volume, bright switch, second stage, power valve. 6N2P (6Н2П) in the preamp and an EL91 in the output. This time I used a computer PSU enclosure for the chassis. Also, unlike the previous amp, it has about 6 dB of NFB. I'm still thinking about the right name for this baby.
 

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