Strong RCA Nickel / Wafer Base Black Plate Solid Top O Getter 6SN7GTB Tube

RCA 6SN7GTB Vacuum Tube - NOS - Near Perfect Balance - Tested Good (See Pics)

Vintage Pair RCA 6SN7-GTB Tubes *TEST VERY STRONG* Black Plate

(2) RCA / Emerson - 6SN7GTB Tubes Black Plates- Side D Getters - Tested

NOS/NIB RCA 6SN7GTB Dual Triode Vacuum Tube - Tested

(2) RCA 6SN7GTB Tubes Black Plates Bottom D Getters 1954 Test Strong TV-7U

6SN7GTB NOS RCA amplifier electron radio audio tubular vacuum tube tested 6SN7GT

RCA 6SN7GTB Tube Coin Base Black "T" Plates tested strong @ 94/95 on B&K 606