One of my hobbies i recently began is buiding tube amplifier. Here are some
amps i built.
50BM8 push-pull stereo power amp
This is my first custom-made amp. My friend asked me to build the one. Although
he already has a high power solid-state amp (240W !) that he uses as main audio
equipment, he said he wanted to have a more rough & wild tube amp. I designed
and assembled this for him. I use 4 cheap 50bm8s in a push-pull circuit and
obtain 8W+8W output power.
schematic
2A3 single ended stereo power amp
This is a high grade tube amp that i myself designed. I use famous direct heating
triode 2A3 as a single ended power tube and 12AU7 as a driver. It uses big transformers
and a choke, so it's big and very heavy (12kg) and also cost a lot (still cheaper
than buying one though..)
schematic (amp)
schematic (power)
0.2+0.2W mini amp with 12AU7
I designed & bult this for my bed room listening music quietly at night. I
use 12AU7 as a power tube that normally used as a driver tube. Output power is
only about 0.2W but it's loud enough for the use in the bed room.
schematic
5W guitar amp with 6L6GC single ended
I built this small guitar amp after a Fender Champ. It's loud enough for using
in a very small night club. Usually i plugg in my Stratocaster to this amp and
practice at home.
schematic
Stereo power amp with 6BM8 in STC
This is the very first amp that i built about 2 years ago. I took the schematic
from an internet site. STC is a very unique way of using triode & pentode in a
special connection between two. This sounds very good and has been working as
a main amp of my audio equipment in my home for more than a year. Recently the
2A3 amp took over this one.
schematic
Other things
Fazz, tube equalizer amp for vinyl, CD player, head amp,..
