22-10-2012, 06:02 PM
Lawrence, whilst I've never come across anything but the R1155 which uses the VR102, I think that if the valve had been made specially for the Air Ministry then it wouldn't have been given the BL63 identity as well - that's very much a civilian number, which I'm guessing came before the VR102 identity.
We need a prewar valve data book which includes it - anybody got one?
Andy
We need a prewar valve data book which includes it - anybody got one?
Andy







