Rather unusual Crystal and valve on a board Looks like a military type of plug connection but not 100% sure.
Bit of a curiosity,,,,,,,,,,,,,,,,,,,,,,
The crystal frequency 100 KC
spares or repairs untested.
Crystal Unit RCA Model VC-5 & 6BA6 Pentode Valve
SKU: 03419
£10.00 Regular Price
£9.00Sale Price