Tektron TK2A350S REF power amplifier.

Ex-dem with 6 hours on it.

Fascinating power amp with adjustable heater voltage allowing use of different output triodes – 45, 2a3, 300B, VT 50 &52.

Can use UX245, UX345, KR 242 and type 46 with adaptors.

Currently has Electro Harmonix 300B Golds.