Category Archive: Tube Amp

Jun 26

Tube Amp

I had a lot of tubes lying around, so I decided to build a tube amplifier. The circuit diagram is drawn by Mat Jansen on “elektronicaforum” (Thanks Mat!). Link.

schema
A drawing of how the amplifier is going to be looking:
3D tekening

Jul 11

Tube Amp – Update

Today I bought the transformers that I’m going to use as output transformers.
transfo
transfo

Jul 12

Tube Amp – Update

Component layout:

opstelling

The connections:
opstelling

Mains switch, Power connector, 2 speaker connectors, RCA connector

 

Volume knob:
volumeknop
The power transformers.
transfos

The left transformer provides 200VAC. The right transformer provides 15VAC glow voltage.

Dec 29

Tube Amp – Update

I received 4 tube sockets from Pollin today. Now I can start building.
buisvoet

Jan 16

Tube Amp – Update

The amplifier is almost finished, but testing points out that I have a nasty 50Hz buzz on the output.
bijna klaar
bijna klaar