It is a combined transmitter/receiver complete with an internal HT/LT battery (162v/3v) when operated as a manpack.
The set covers the range 2.0 - 4.5 MHz and may be locked to any frequency using the 3 position flick mechanism. The transmitter is automatically adjusted to send on the same frequency as the receiver. In addition, 3 crystal controlled channels are provided.
The valve line up is as follows:
|V1A 1R5||Mixer|| |
|V2A 1T4||1st IF Amp|| |
|V2B 1T4||2nd IF/Audio||Sidetone RT|
|V2C 1T4||RF Amp||Buffer Amplifier|
|V2D 1T4||Net Only||1600kc xtal oscillator|
|V3A 3A4|| ||Modulator|
|V3B 3A4|| ||Power Amp|
|V4A 1S5||2nd Det/BFO||Audio Amp RT, Osc MCW|
IF Frequency is 1600 kc
The WS128 was approved for production in July, 1945, but did not apparently appear on the scene before the war had ended.
The set is very popular with collectors and represented a vast improvement on what had been available locally during the war years. The cases on the set have suffered over the years owing to their light weight construction and very battered looking 128 sets are unfortunately the norm.
The sets were "ready to go" on 80 metres and no doubt many have made their way onto the ham band.
© Ian O'Toole, 2009. Page created: 16/04/04 Last updated: 11/12/2009