Lansdale 12AU7 / ECC82 Vacuum Tube 17MM Black Plates Copper Support Rods Early Production Philips Nonal steel plates and steel suppost

steel plates and steel suppost rods

It has 0 26 date codes

gray plates and bottom

This new old stock-TESTING matched pair of Tung-Sol 6K6GT tubes was tested on our Maxi-Matcher 400 volts on the plates and a bias of -36 volts for shorts

Lansdale 12AU7 / ECC82 Vacuum Tube 17MM Black Plates Copper Support Rods Early Production Philips Nonal steel plates and steel suppostThis Lansdale (Philco's in house tube manufacturing arm) 12AU7 ECC82 dual triode was tested on our Paul Hart calibrated TV7 U for shorts, gas and transconductance. There were no shorts or gas. It measured 70 64 where minimum (65%) is 56 56 and 100% is 86 86. It has shiny 17MM black plates; copper support rods; excellent flashing; a top slanted D getter and L1E date codes. This is an early production 12AU7 not a 12AU7A like most 12AU7s we see these