User talk:109.181.40.21

Hi, I used type 17 sets which it seems there is no info on. They worked on BBCTV transmitter frequency which was to be used if Germany invaded. They used HT & LT batteries to power the 2 of 4 pin valves. They were 5 shillings each at the local government surplus shop. I gather they were issued to the British Resistance organisation which was never called on to act against German invasion.

109.181.40.21 (talk) 23:46, 30 December 2019 (UTC)John