Spare MT9L valve for 2LO transmitter (37)

Spare MR6 valve for 2LO transmitter. Manufactured by Marconi. Serial number 6789. Packed in bespoke wooden crate. Labelled 37.

Details

Category:
Radio Communication
Object Number:
2009-146/17
type:
thermionic valve
credit:
From the British Broadcasting Corporation/Crown Castle UK Ltd