One RCA 6AV6 Tube NOS NIB Strong Triode Balance Diodes AMPLITREX Results

(1) Tested Sylvania 7B4 Tube Date Code 7-52 Triode Loctal Tube Loktal Tube (a)

(1) Tested RCA 7K7 Tube Date Code 322 Diode Triode Loktal Tube

(1) Tested GE 6CN7 Tube Red Letter Date Code 61-26 General Electric Diode Triode

(1) Tested RCA 6GF7A with Box Date Code VWJY RCA 6GF& A Dual Triode Tube

(1) Tested RCA 6GF7A Tube with Box Date Code 71-39 RCA 6GF7 A Dual Triode Tube

(1) Tested RCA 6S4A Tube with Box Date Code K9 Medium Mu Triode Tube

(1) Tested RCA 6Q7GT Tube Date Code YJL Twin Diode High Mu Triode Tube