Lansdale 12AU7 / ECC82 Vacuum Tube 17MM Black Plates Copper Support Rods Early Production Philips Nonal respectively where minimum (65%) is

respectively where minimum (65%) is 57/57 and 100% is 88/88

This new old stock-testing Westinghouse 6X5GT rectifier tube was tested on our Paul Hart-calibrated TV7/U for shorts

One can adjust the time

steel plates and steel suppost rods

black plates

Lansdale 12AU7 / ECC82 Vacuum Tube 17MM Black Plates Copper Support Rods Early Production Philips Nonal respectively where minimum (65%) isThis 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