Groove Tubes 12Ax7

12AX7 clean tone comparison: Philips vs General Electric vs Groove Tubes

SHUGUANG CHINA 12AX7 vs FENDER GROOVE TUBES 12AX7 Tube Comparison Peavey XXX Amp

VACUUM TUBES AND GUITARS

12ax7 Preamp Tube Comparison - Groove Tubes vs Sovtek

Tubes Tone Test JJ ECC83S VS GROOVE TUBES 12AX7 C in a Peavey XXX amp

VACUUM TUBES AND GUITARS

Groove Tubes 12AX7 vs Telefunken 12AX7 You make the call Tube Comparison

VACUUM TUBES AND GUITARS

6L6 and 12AX7 Tubes - Does replacing them all improve tone???

Fender Blues Jr - groove tubes or TAD tubes?

Sam's Guitars & Gear

Preamp Tube Comparison (JJ, Tung-Sol, Telefunken, TAD, Genalex, Groove Tubes, Mullard)(13 Tubes)

A pair of Groove Tubes Tungsram 7025 12AX7 tubes tested in a Peavey XXX amp

VACUUM TUBES AND GUITARS

Tung-Sol x Groove Tubes | Changing and Comparing EL84 tubes in a Fender Blues Jr. III

Felipe SM Wolfe

2 AMPEREX Orange Label 12AX7A Vs. Groove Tubes ECC83S in a Peavey XXX 112

VACUUM TUBES AND GUITARS

Philips VS Groove tubes ECC83S

Valve quick test: JJ 12AX7 vs Groove tubes 12AX7-R3

Marshall Origin V2 Valve Shoot-Out Groove Tubes 12AX7M

My Traynor YCV-40 combo amp + Groove Tubes 12AX7-C

Len Picoutlagan

Preamp Tube Comparison / shootout 12AX7, 5751, 7025, ECC83 - Mesa, JJ, Gold, Marshall and more!

Marshall JCM2000 DSL 100 - Groove Tube 12AX7R Slot V1

Orange Micro Dark Terror Part 2 Swapped Pre amp tubes to Groove Tube 12AX7

Tube check: JJ Electronic EL84 vs. Groove Tubes EL84-S

Bugera 1960 Infinium - stock with Groove Tubes 6L6 power tubes and Bugera 12AX7 preamp tubes.