Home:  Receiving: PHILIPS 'Q' VALVE, 1921

PHILIPS 'Q'  VALVE, 1921

View all Receiving

PHILIPS 'Q' VALVE, 1921

The Philips 'Q' was a space-charge-grid Tetrode, the base had a terminal on the side for the inner grid. With a bright-emitter filament 3.5volts.

Nortel Collection

Add a memory or information about this object

A1306



2007 The Museum of Technology, The Great War and WWII
Company registered in England No. 7452160, Registered Charity No. 1140352, Accredited Museum No. 2221