Matched Pair General Electric GE 5814 5814A JG-5814A ECC82 Vacuum Tubes Valves Triple Mica Milspec / Industrial NOS-Testing

Matched Pair General Electric GE 5814 5814A JG-5814A ECC82 Vacuum Tubes Valves Triple Mica Milspec / Industrial NOS-TestingThis new old stock testing matched pair of milspec industrial GE JG 5814A 12AU7A dual triodes was tested on our Maxi Preamp II for shorts, gas, noise, transconductance and gain. There were no shorts, noise or gas and they tested as follows: Tube One: Noise: 83. 4 dB 85. 4 dB ( 92 dB is the Maxi Matcher's noise floor) Transconductance: 1284 1432 Gain (Mu (): 17 17. 3 Tube Two: Noise: 85. 4 dB 85. 6 dB Conductance: 1475 1690 Gain (Mu (): 17 17. 3 These

tall bottles

5 amps for their filaments as compared to

It measured a perfectly-balanced 42/42 where minimum (65%) is 40/40 and 100% is 62/62

new in box GE 6CL6 tubes tested to spec on our Paul Hart-calibrated TV7/U

not included) in my AC-heated Alan Eaton single-ended 45 amplifier and they sound OK

32 and 35 where minimum (65%) is 23 and 100% is 35

They measured 82/76 for Tube One and 85/74 for Tube Two

This matched pair of RCA black plate 5763 tubes were tested on our Paul Hart-calibrated TV7/U for shorts

It teats below spec but should work fine in many applications

new in box Amperex 6GF7A tubes tested to spec on our Paul Hart-calibrated TV7/U

anode radiators for cooler tube operation and longer life and 312 5126 and 312 5052 provenance/date codes

The dust jacket is in excellent condition