Untitled

Radio Record, Volume II, Issue 6, 24 August 1928, Page 30

Nv likes to record enterprise and ingenuity on the part of our own radio dealers. A Wellington man is manufacturing two-stage audio-fre-queney amplifiers, for use only with, erystal sets, -of a type which obtai its’ A, B, and © voltage supply fr b the household lighting mains. All one’ has to do is to plug into the lighting ‘socket and the amplifier operates without any batteries at all. High-class audio transformers are embodied in ‘the outfit. and with a erystal detector ‘the tone is a veritable delight, and the volume ample. The outfit is being re‘tailed at about £6. en ee