Lansdale 12AU7 / ECC82 Vacuum Tube 17MM Black Plates Copper Support Rods Early Production Philips Nonal This LP is in very

This LP is in very nice shape

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

One can adjust the time

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

Lansdale 12AU7 / ECC82 Vacuum Tube 17MM Black Plates Copper Support Rods Early Production Philips Nonal This LP is in veryThis 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