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.
Mains switch, Power connector, 2 speaker connectors, RCA connector
The power transformers.
The left transformer provides 200VAC. The right transformer provides 15VAC glow voltage.
The amplifier is almost finished, but testing points out that I have a nasty 50Hz buzz on the output.