RCA 6V6GT Vt-107A Blackplate
RCA 6V6GT Vt-107A Blackplate

This is an incredible find. The "holy grail" of 6V6 tone. 1940s WWII vintage RCA blackplate 6V6GTs in good original boxes. Top "horseshoe" retainer for added stability of internal parts and added resistance to rattle and microphonics. 48 hour burn in. Limited supply. Optional cream colored original RCA "US Army Signal Corps" boxes at a discount from the red and black boxes.

Quartets available in CREAM colored boxes only.


I just wanted to chime in to say a big thank you.
> Put them in my Marshall Studio 15 and the transformation was amazing.
> Gone were the boxy mids, shrillness and boomy low end, and it became a full
> bodied sweetness that I really did not expect. The amp went from an ok
> practice amp to a great recording amp. Frode

These in my 65amps Empire are wonderful. Creamy. Give it up easily and go from clean to Beano effortlessly. The Mullards I got from Mike are also stellar with more headroom and terrific crunch - wonderful rock tones.  Max

Everything sounds mind blowing better in my Fender 57 Custom Deluxe than the stock stuff, its crazy how much it improved the tone of my amp. The breakup is much more buttery and easier to grind into, less farty and hard sounding...  so happy. Ron

I really like those rca blackplates.  Excellent excellent tube.    Do u have 2 more?  Jon>>> Yes, we do!

Mike: Ive had my PRRI for about 6 yrs and its the best amp I've had.the only change I've made was to put a Weber FT150 speaker in it . I was relatively happy with it. It still had the original tubes in it.(groove tubes from electro-harmonix) I purchased the Rca 6V6 GT BP  tubes and have been playing them for about a week . HOLY S*%#(!T  . What a difference. It aint no placebo effect . It sounds great  . Thx for the tubes . No worries here.


Thanks for the great tubes! My amp tech says he's never seen closer matching tubes, ever! They sound great in my Deluxe. Thanks again.

John Gillespie

Hey Mike, they arrived! Installed them in my Tungsten Crema Wheat and could not be sweet!! The amp is like a living thing when it's dimed!

Thanks a bunch!


The pair in my Tweed tremolux sound incredible!

Thanks Mike!

Hey Mike,

Ok, so the new RCAs are outstanding.   The 5751 is great as well. I'm very, very happy. Thanks for all your help.


Thanks again, by the way they sound great in my Clark tweed deluxe clone!

Mark Miller

Price: $60.00
Select Matched Pair for amps that use 2 of these tubes and Matched Quartet for amps that use 4