Matched Pair of original Tesla PCC88

7V filament version of ECC88 tube.

you can use them in place of ecc88 tubes practically in every gear.

Tubes are probably new, not used, tested NOS. same code.
Made in Chechoslovakia in DECEMBER 1984 according to "SD" code
come from large military stock, no boxes
frame grid, box anodes with the white metal shield
these are 37 coded famous TRINEC plant Czechoslovakia
there is almost always the possibility that the tubes were used for a while, but I'm pretty sure that the tubes were never used, NOS
test strong, look great, came from huge military stock.
I, personally often use these tubes in place of ECC88 with great results,

very low noise and pleasureful sound.

test strong, perfectly balanced and matched, very high emission
 test results:
tube1 - 17,5mA/19,5mA
tube2 - 19,5mA/18,5mA
where new tubes should test 14mA
Same code "SD" December 1984
Tested in High End preamps. Great for audio.
price is for the pair (2 tubes)
sorry no individual boxes this time
I always send the tubes by priority registered mail with tracking number within hours after receiving payment