DIY tube amplifier by Stavros Danos

This gorgeous heavyweight SET amp uses the Direct Heated 813 tubes triode connected, runing at 120mA. OPTs are the excellent Sowter SE18 SE.

The filaments power supply uses batteries for eliminating hum.

The main power supply uses a toroidal Amplimo Power transformer (850V secondary), followed by an CLCLC filter separately for each channel using polypropylene and oil capacitors only.