preamp for buddys computer

[karma]

http://www.netaxs.com/~vkalia/5687.html

i needed to get rid of my last 5687 tubes i just pawned em off on my friend. hell he likes it he uses the pc to change the volume so
i didnt need to put on a volume. and i made my own power supply
to fit. the plate voltage came out to 200v😉

 

[karma]

1

😉 opps gota remove the old stickers on the back