New In Factory Box Mullard 12AX7 Reissue Long Plate Preamp Vacuum Tube Maxi-Preamp 2 and Hickok Tested. Closely balanced sides within 1% for gain! Tube in test photos is...
Closely balanced for both gain and GM. Gain: ( 96.4 & 94.9) MU and side balance. Gas (Grid Current)Test: Passed. Test results will vary between testers as it is...
NOS tubes fall within the Gm characteristic range of an average tube, as published in the RCA RECEIVING TUBE MANUAL, which states "Individual tubes, like any manufactured product, may...
The boxes look bad due to a flood in the area. The tubes test good I do not know if they are new or used.
The product is a NOS RCA 12AX7A ECC83 12AX7 vacuum tube, manufactured in the United States. Known for its amazing sound quality, this tube is a sought-after vintage audio...
Gold pins, grey plates with solid halo getter. These are also known as a 12AX7/CV4004/ECC83 tube type. The printing on this tube is in superb condition as seen in...
Balanced sides. Gain: (95.0 & 92.9) MU and side balance. Gas (Grid Current)Test: Passed. Test results will vary between testers as it is not an exact science. Very good...
This pair is well matched and tests very strong. Fully tested on a TV7BU. Minimum good is 32.
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...