For Sale here is one GE 5751 tube made in USA. This has been tested on a calibrated Hickok 600a at 38/39 where minimum good is 30 and the average new tube is 42.
GE 5751 ECC83 12AX7 Tested Good Tube
Tested Good.
BALANCED GAIN (69.5, 69.9) GE 5751 TRIPLE MICA GREY PLATE SLANTED HALO GETTER
Tester 5751 Expected Gain (Mu) value = 70. TESTED ON A MAXI PREAMP II TUBE TESTER FOR GAIN(Mu), TRANSCONDUCTANCE(Gm) AND NOISE(dB). While performing an audio tap test on the Maxi Preamp through a guitar amp Triode A tested GOOD when tapped, Triode B tested GOOD when tapped.
1950s GE JG-5751/12AX7 PRE-AMP TUBES. PAIR. Mil-Spec. USA. Tested
CLOSELY MATCHED PAIR. 5751 tubes were generally built for the military. The ‘JG’ marking verifies this. They have lower gain than the 12AX7 but are otherwise compatible, and they are quieter. These tubes were rugedized for military use.
GE JG 5751 12AX7 Test NOS Short Black Plates 3-Mica Copper Gr Serious Tubes D557
Type: JG 5751/12AX7/ECC83. But this the way of the world now. We are always looking to buy more tubes. Large collections, small collections, it doesn’t matter. Looking forward to hearing from you, Dan.
5751 GE GENERAL ELECTRIC VINTAGE TUBE NOS NIB 12AX7 AB5
New without box
2 x 5751(12ax7) G.E. Tubes*Lower Testing*Grey Plates-O*
2 x 5751(12ax7) G.E. Tubes. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. Grey Plates. What were your tubes tested at?. Bogey(100%) = 1200/1200 @ 1.2 & 1.2 mA +/- 10%.
GE 5751 ECC83 12AX7 5 Star Tested Good Balanced Tube
Tested Good.
Jan GE 5751 tubes nos tested good
Tested on a hickok 752, where 200 is good/new. Thanks
Two GE 5751 12AX7 Tubes Large Solid Dish Getters GM[%]: 100/91 100/91 AMPLITREX
Fixed Bias on AMPLITREX Tube Tester. One Tube has JAN 5751 Water-Based Lettering with Green MILSPEC Color. Value-Added Tubes. Two Excellent GE 5751 12AX7 Tubes. Preferred Larger Solid Dish “O” Getters.