A tube was considered acceptable/new/ passed standards if it tested between the specified minimum and maximum on a tube data sheet or the minimum value specified on the tester...
This pair is well matched and tests very strong. Fully tested on a TV7BU. Minimum good is 32.
ECC83 / 12AX7 / 7025 Balanced Tubes. All tubes have been tested and matched on two Hickok Professional Tube Testers. I then use the Hickok 539B to confirm the...
Both tubes tested low on hickock 600a tube one Rca 600/1250 500/1250 tube two simplex (rca made) 1600/1250 800/1250 Both tubes were tested in circuit in my amp and...
These RCA 12AX7A are one and only tube to have in the V1 slot on any guitar amp. It has that 1960s sound, excellent breakup, and a smoothness that...
This is really wonderful 12AX7A variant. No audible noise even if used as preamplifier tube for mid gain amplifiers. Tone is detailed yet not harsh at all, really round...
THESE SQUARE GETTER 12AX7 ECC83 TUBES WILL SOUND AMAZING. YOU GET THE 2 TUBES AND THE 2 ORIGINAL BOXES FOR THE PRICE. MADE 1957 IN THE USA.
Tested strong using a professionally calibrated TV7A/U tube tester at 42/40gm (32 is minimum).
My musical career hasn't taken off like my aviation career has. Pun intended. So,I have three of these, available separately, sitting in my office along with several other tubes...
The 6N2P-EV NOS tube is a vintage audio component that is guaranteed to work perfectly. This unbranded/general tube is a 12AX7 ECC83 7025 5751 equivalent, offering compatibility with a...