(5) Telefunken Ribbed Plate 12AX7/ECC83 Tubes ~ TEST STRONG!

2 GE 12AX7 LONG PLATE VACUUM TUBES

12AX7 Tube New Shuguang Match Pair Silvered Pins 80s TV7 Tested Think Fender Amp

4x Tungsram ECC83 (12AX7) Tubes - Matched Quad - NOS NIB - Strong TV-7 Tested

Lot of 8 RCA GE + 12AX7 Amp Vacuum Tubes TESTED on Hickok D getter Black Plates

Matched Pair Tung Sol 12AX7 / ECC83 pre-amp tubes, Brand NEW in Box !

New 1x JJ Electronics 12AX7 / ECC83 | One / Single Tube | Free Ship

Mullard 12ax7 Pair…late Sixties….tested NOS And Matched

RCA 12AX7A / ECC83 Tube balanced Ham radio audio Triplet 3444 tested

Vintage Sylvania 12AX7 PLATINUM GRADE Preamp Amp Tube 95% NOS = 7025 5751 ECC83

Mullard 12AX7/ECC83, Matched Pair

NOS/NIB/MATCHED PAIRS/GE/12AU7A/ECC82/(10 AVAILABLE) MAXI PREAMP TESTED