Matched Pair RCA 5963 12AU7 12AU7A Vacuum Tubes Black Plate Industrial-Grade 2nd Quadrimester LP nostalgic-looking Super Silvertone 6P5G triode

nostalgic-looking Super Silvertone 6P5G triode was tested on our Paul Hart-calibrated TV7/U for shorts

IN OVER OVER 6000 TRANSACTIONS

This special edition DVD is still sealed

It portended growth but alas we got suicide and embezzlement instead

Matched Pair RCA 5963 12AU7 12AU7A Vacuum Tubes Black Plate Industrial-Grade 2nd Quadrimester LP nostalgic-looking Super Silvertone 6P5G triodeThis matched pair of RCA black plate 5963 dual triodes was tested on our Paul Hart calibrated TV7 U and our Maxi Preamp II for shorts, gas, noise, transconductance and gain. There were no shorts, noise or gas and they tested as follows: Tube One: Noise: 85. 2 dB 85. 6 dB ( 92 dB is the Maxi Matcher's noise floor) Transconductance (Maxi Matcher): 1789 1690 Transconductance (TV7 U): 55 55 where minimum (65%) is 50 50 and 100% is 77 77. Gain (Mu (): 17.