Gas (Grid Current)Test: Passed. Test results will vary between testers as it is not an exact science. Very good sounding low noise tube. Gain: (17.6 & 16.7) MU and...
Tested strong on Hickok 799.
These are extremely rare and almost never appear on eBay especially as a sleeve of NOS tubes All tested NOS on an Amplitrex AT1000 tube tester with the following...
The Ratheon 12AU7 Matched Set is a vintage pair of NOS tubes made in the USA in 1963. This matched pair has been tested and is strong, making it...
Tubes are NEW, NOS and strong, tested and fully working. where 100% is:Ia = 10.5. Ua = 250V, Ug = -8.5V.
This listing is for (2) brand new, factory fresh Amplitrex matched JJ ECC802S Gold Pin tubes. These are matched for Gm. We Source these as Balanced tubes. We then...
Double Triode Tubes. FOIL GETTER. Electrically Tested. 8.0 6.0 1.8 1.8.