Eico by Mullard. We cannot be responsible for what tubes test in another tester.
Item Tag: Preamp Tubes
-
RCA 5751 Triple Mica Black Plate Pair Preamp Tubes
We cannot be responsible for what tubes test in another tester.
-
Matched Pair GE 7058 12AX7 Preamp Tubes TV7U Tested
Both tubes tested and matched NOS on a professionally calibrated TV7U tube tester with the following results (32 is minimum): Tube 1- 48/46 Tube 2- 46/44
-
1954 GE 12AU7/ECC82 PLATINUM PLUS GRADE Preamp Tubes Matched Pair 90% NOS
Silver Grade tubes are matched within 20%, Gold Grade tubes within 15% and Platinum Grade 10%. You are purchasing a ” Platinum Plus ” grade matched pair of tubes. Test scores will average between 90% and 95% of NOS values.
-
1964 GE JG-6189/12AU7WA PLATINUM PLUS+ Halo Getter Preamp Amp Tubes Matched Pair
Silver Grade tubes are matched within 20%, Gold Grade tubes within 15% and Platinum Grade 10%. You are purchasing a ” Platinum Plus ” grade matched pair of tubes. The price listed is for one pair of tubes.
-
Telefunken 12AX7 Preamp Tubes Vacuum Tube Pair.No original box.
Telefunken 12AX7 Preamp Tubes Vacuum Tube Pair.No original box.
-
GE NOS 12AT7WC 6201 Preamp AUDIO Vintage Vacuum Tubes Premium Military!
All tubes tested on a B&K Model 625 Dyna Tester. All tubes tested for shorts and emissions leakage.
-
5x NOS Philips JAN 12AT7WC / 12AT7 / ECC81 Preamp Tubes 5 Pack Sleeve Free Ship
These tubes have defined lows, and smooth highs. We all know that swapping out tubes can be one of the more effective ways of improving your tone.
-
Pair of JJ ECC802s / Hi-Performance 12AU7 Preamp Vacuum Tubes
This is a matched pair of tubes that came out of a Rogue Audio integrated amp. I’ve recently upgraded and this pair has less than 200 hours on them.
-
1964 Toshiba 12AU7 PLATINUM PLUS Grade Preamp Amp Tubes Matched Pair 95% NOS
You are purchasing a” Platinum Plus” Grade pair of tubes. Silver Gradetubes are matched within20%, Gold Gradetubes are matched within15% and Platinum 10%. Test scores average 90% to 95% of NOS values.