These are very clean, fully tested and auditioned tubes. Nice strong test results, closely matched 105%/108% Gm dynamic mutual conductance and about 5mA apart in current draw when played in our amps. 

Biased up nicely and auditioned in both our p/p guitar and single ended stereo amps and these tubes test and sound awesome in both amps! GE 6l6gc power tubes have wonderful detail and a sweet vintage GE TONE you can't get from tubes made today in China or Russia. Vintage GE tubes sound WAY better and outlasts them up to 5 times longer too!

You can safely use these in any 6L6 type amp that calls for 6L6, 6L6G, 6L6GB, 6L6GC, 7581 and KT66 tubes with no mods needed.

Tube Number        6L6GC

Date codes           JK, (JK wiped off )

Plate style            gray

Glass style           clear short bottle

Test results (typical new NOS = 5000 Gm, 45mA (pp), 60mA (se)

 Tube-2 = 5250 Gm, 50mA, 70.6mA

Sold as is, guaranteed as described.

                                      We may have others, click here ==>     Debi's Vintage Electronics Boutique

keyword: ELECTRON, VACUUM, NOS, NIB, 6L6GC, TUBES, VALVES, ROHR, LAMP, VALVOLA, 튜브, 管子, TUBO, チューブ, PUTKI )