version francaise
This is my 300B monobloc. It is based on Diafan schematics.
I use it to drive the bass horns and for the midrange and treble.
I made a monobloc to avoid ground loops in the inputs cables.
I also used big capacitors to minimise the hum. My favorite output transformer is Hashimoto HC-203U for bass and H-20-3.5U for midrange and treble,
you can buy it online here:
tube-amps.net
When using this transformer bass is surprisingly percussive, considering it is just a small 300B amplifier.
After listening tests I prefered the no-feedback version and I prefered a direct 300B biasing. I also prefered 300b triodes from KR.
Schematics: SE300B.pdf
1KHz square wave:
