Description
Philips Triode Radio Valve (or Tube) Type QQE02, in unmatching green Z & I Aero Services Ltd. cardboard carton. Small glass valve with pressed glass base, with nine steel base pins and one glass tip.
Acknowledgement: © History of Science Museum, University of Oxford, inv.34480
Philips Triode Radio Valve (or Tube) Type QQE02, in unmatching green Z & I Aero Services Ltd. cardboard carton. Small glass valve with pressed glass base, with nine steel base pins and one glass tip.