Philips DA90 / 1A3 Electronic Valve, Signal Detector Diode, New Old Stock.

For sale; New and tested Philips DA90 = 1A3 (signal detector diode) valve. Handover in the Coimbra area or shipping to the rest of the country. Shipping costs apply. I have more new and used valves and other items for tube radios, if needed please contact me.