-40%

1 x 31LQ6 GE/RCA/Sylvania Tube *Very Strong*NOS*NIB*(4 Available)

$ 10.03

  • Brand: RCA
  • Type: Vacuum Tube

Description

1 x 31JE6C/31LQ6 GE or RCA or Sylvania Tube Made in USA Boxes are a bit tattered Lettering is smudged/missing ****Let me know which one(s) you want,otherwise I will pick **** Tested on Enhanced Triplet E3444 Laboratory Tester by Paul Hart of Roswell Ga. #1-RCA 8600 micromhos @ 67 mA #2 - Sylvania(Dumont) 9300 micromhos @ 86 mA #3 - GE 10,900 micromhos @ 80 mA #4 - GE 9900 micromhos @ 63 mA Bogey(100%) = 9600 micromhos @ 130 mA +/- 10% The measurements in this listing were taken on a Triplett 3444 modified to test the tube as an amplifier in accordance with RMA/EIA specifications, utilized by all US and most foreign tube manufacturers. This tester applies test conditions for this tube as shown below (including the precise filament voltage) and then measures transconductance (gm) in accordance with the engineering definition of gm. Tubes may also be operated under the test conditions for extended periods to be sure that it is stable. A tube must be tested in this manner to compare its test results with the manufacturer’s original intent or with other tubes of the same type. Most tube testers do not apply the test conditions required or conduct a valid gm test. For more details on the test and our test equipment, please contact us. The test conditions for this listing are __ 175 _Volts plate, __ 125 _Volts screen, ___ -25.0 ___Volts bias or Cathode resistance * What were your tubes tested at? I do combine S&H when possible