McVitie Weston valve collection, BTS Television Neon Lamp valve
BTS Television Neon Lamp valve, two parallel flat plate electrodes, bayonet cap, (RMW/K12A - McVitie Weston number), by BTS Broadcast Television Systems GmbH.
BTS Television Neon Lamp valve, two parallel flat plate electrodes, bayonet cap, (RMW/K12A - McVitie Weston number), by BTS Broadcast Television Systems GmbH.