4 Tests NOS RCA 6L6GC Black Plate Gm & mA Matched Quad Strong Testers Only Vintage Vacuum Tubes

Please note: We have change this listing to "tests NOS RCA 6L6GC" as we are out of stock of NOS versions. However, we have a surplus of NOS testing RCA 6L6GC and we are making them available at an amazing price until we have more NOS versions to offer. 

Tubes may have "use" marks and poor logos. But test values, getter and bottle types will be matched. 

If you would like to be the first to have an NOS set once back in stock or have any other questions- do not hesitate to reach out. 

ATTENTION BUYERS - Please Read Our Shipping Terms, Our Testing Standards, Our Return Policy (30 Day Any Fault) and Read Our Great Reviews!

At FuzzAudio(.com):

·      All tubes are tested on a calibrated Hickok 539b & Western Electric KS-16650-L1 Tube Testers.

·      30 Day Money Back Guarantee

·       All power and preamp are tubes tested for Mutual Conductance (Gm)

·      Do not buy power or  preamp tubes that have been tested solely on an emissions tester or “tube checker”- this is an inadequate test.

***4 NOS RCA 6L6GC Black Plate Gm & Ma Matched Quad Strong Testers Only****

Strong NOS Gm Readings Only!

Will last 1000s of hours if not a lifetime.

Tube Type / Number: 6L6GC

Actual Brand: RCA

Printed Brand: RCA or Various

At Fuzz Audio(.com), all of our tubes are thoroughly tested. No tube tester is perfect, we often test tubes on several different industry grade testers to ensure you get a quality valve.

We do not have original boxes for all vintage tubes. If you require an original box, we will do our best to supply one. Contrary to popular many vacuum tubes did not come from the manufacturer individually boxed. Most tubes were manufactured for industrial use and were shipped and stored in large cardboard boxes with lipstick dividers. 

Note: Pre-amp tubes do not need to be matched for 90+% of applications.