Inside view of the radio

Instruction label

Medium & Long wave, 4 valve,
TRF battery radio

Valves; 220VS PM1HL PM1HL PM22

Battery details; 2v LT, 60v + 100v HT, 4.5v + 6v + 7.5v bias

Dimensions closed mm; W=381, H=457, D=241

See the KB 393 in the Radio Museum

Notes; Four valve Battery-fed Receiver operating with Built in Frame Aerial. This receiver is of the "transportable" type, and is housed in an upright cabinet. It employs an HF, Det, & 2 LF valve type circuit, with pentode output. There is a "local-distance" switch, and the tuning condenser is provided with an externally controlled trimmer.

The cabinet sides and back door are solid oak, the front panel is ply veneered with oak.

Fitted with balanced armature reed speaker.