Lowther B5.F
Released in 1948, the B5.F is the post-war version of the B.5. It is a classic Lowther amplifier using a single PX25 triode in single-ended mode. Its specification is as follows:
Valve line-up: 1 X PX25, 1 X ECC33, 1 X FW4/500
Power output: 5 watts
Frequency response: 35 - 30,000 Hz +/- 0.5dB
Size: 12 X 14 X 10.5 inches
Weight: 27 lbs
Original price: £35-0s-0d