2 x JAN-CRP-6SN7gt Raytheon Tubes Made in USA for US Navy 2-hole Black Plates Support Rods Military Specifications = VT-231 Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga. 2380/2250 micromhos @ 6.8/6.7 mA 2330/2720 micromhos @ 7.5/9.4 mA Bogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistance What were your tubes tested at?I do combine S&H

2 x JAN-CRP-6SN7gt Raytheon Tubes Made in USA for US Navy 2-hole Black T Plates Military Specifications = VT-231 Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga. 2640/2570 micromhos @ 6.9/6.4 mA 2820/2340 micromhos @ 10.7/8.0 mA Bogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistance What were your tubes tested at?I do combine S&H

2 x JAN-CRP-6SN7gt Raytheon TubesMade in USA for US Navy2-hole Black PlatesSupport RodsMilitary Specifications = VT-231Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga.2380/2250 micromhos @ 6.8/6.7 mA2330/2720 micromhos @ 7.5/9.4 mABogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistanceWhat were your tubes tested at?I do combine S&HThe 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 co

2 x JAN-CRP-6SN7gt Raytheon TubesMade in USA for US Navy2-hole Black PlatesSupport RodsMilitary Specifications = VT-231Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga.2380/2250 micromhos @ 6.8/6.7 mA2330/2720 micromhos @ 7.5/9.4 mABogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistanceWhat were your tubes tested at?I do combine S&HThe 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 co

When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay.2 x JAN-CRP-6SN7gt Raytheon Tubes 2-Hole Black Plates Very Strong Pair VT-231This product data sheet is originally written in English.2 x JAN-CRP-6SN7gt Raytheon TubesMade in USA for US Navy2-hole Black PlatesSupport RodsMilitary Specifications = VT-231Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga.2380/2250 micromhos @ 6.8/6.7 mA2330/2720 micromhos @ 7.5/9.4 mABogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistanceWhat were your tubes tested at?I do combine S&HThe 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 co Brand Raytheon Type Vacuum Tube Model JAN-CRP-6sn7gt

When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay.2 x JAN-CRP-6SN7gt Raytheon Tubes 2-Hole Black Plates Very Strong Pair VT-231This product data sheet is originally written in English.2 x JAN-CRP-6SN7gt Raytheon TubesMade in USA for US Navy2-hole Black PlatesSupport RodsMilitary Specifications = VT-231Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga.2380/2250 micromhos @ 6.8/6.7 mA2330/2720 micromhos @ 7.5/9.4 mABogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistanceWhat were your tubes tested at?I do combine S&HThe 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 co Brand Raytheon Type Vacuum Tube Model JAN-CRP-6sn7gt

When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay.2 x JAN-CRP-6SN7gt Raytheon Tubes 2-Hole Black T Plates Very Strong Pair VT-231This product data sheet is originally written in English.2 x JAN-CRP-6SN7gt Raytheon TubesMade in USA for US Navy2-hole Black T PlatesMilitary Specifications = VT-231Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga.2640/2570 micromhos @ 6.9/6.4 mA2820/2340 micromhos @ 10.7/8.0 mABogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistanceWhat were your tubes tested at?I do combine S&HThe 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 co Brand Raytheon Type Vacuum Tube Model JAN-CRP-6sn7gt

2 x JAN-CRP-6SN7gt Raytheon TubesMade in USA for US Navy2-hole Black T PlatesMilitary Specifications = VT-231Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga.2640/2570 micromhos @ 6.9/6.4 mA2820/2340 micromhos @ 10.7/8.0 mABogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistanceWhat were your tubes tested at?I do combine S&HThe 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 co

2 x JAN-CRP-6SN7gt Raytheon TubesMade in USA for US Navy2-hole Black T PlatesMilitary Specifications = VT-231Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga.2640/2570 micromhos @ 6.9/6.4 mA2820/2340 micromhos @ 10.7/8.0 mABogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistanceWhat were your tubes tested at?I do combine S&HThe 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 co

When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay.2 x JAN-CRP-6SN7gt Raytheon Tubes 2-Hole Black T Plates Very Strong Pair VT-231This product data sheet is originally written in English.2 x JAN-CRP-6SN7gt Raytheon TubesMade in USA for US Navy2-hole Black T PlatesMilitary Specifications = VT-231Tested on enhanced Triplet E3444 Laboratory Tester by Paul Hart of Ga.2640/2570 micromhos @ 6.9/6.4 mA2820/2340 micromhos @ 10.7/8.0 mABogey(100% or New) = 2600/2600 micromhos @ 9.0/9.0 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__250_V plate, __250_V screen, ___-8___Vbias or Cathode resistanceWhat were your tubes tested at?I do combine S&HThe 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 co Brand Raytheon Type Vacuum Tube Model JAN-CRP-6sn7gt

When ordering from the US, parcels may be subject to import tax and duty charges, which the buyer is responsible to pay.RAYTHEON 6SN7 GTB TUBE TOUGH DOG 2 HOLE BLACK PLATES MATCHED SET NIB MINTThis product data sheet is originally written in English.BALDWIN by RAYTHEON  6SN7GTBLEGENDARY TOUGH DOGSEXCLUSIVE HIGH FIDELTY TUBES2 HOLE BLACK LADDER PLATESDOUBLE ROUND MICAPERFECTLY MATCHED SETExtremely Rare - NIB - Mint(Ships In *Original Boxes)??? Amazing Historic Vintage Tubes ??? Production Year: 1960sSimilar Codes: S-12 B-06Short Black BaseGold Label  Made In the U.S.A. ??? These Tubes are Very Rare in Good Working Condition ??? BEST TUBES ON THE MARKET... NO SHORTS... NO LEAKS...??? HICKOK TESTED ???Tested on Hickok 750 for Emission, Mutual Conductance Where 50 mA is Good this tube pegs at 68/71 for EmissionWhere 2,600 ?A is Good this tube pegs at 2,800/2,900 for Mutual ConductanceTube 1. B-06 Plate 1. - 68 mA - 2,800 ?A  at Idle                      Plate 2. - 70 mA - 2,900 ?A  at IdleTube 2. S-12 Plate 1. - 70 mA - 2,800 ?A  at Idle                      Plate 2. - 71 mA - 2,900 ?A  at IdleNicely Balanced - Rare and Exceptional - Full Tonal RangeEXCLUSIVE HIGH FIDELTY TUBE All of my Tube Inventory is Boxed and Thoroughly Tested...  *Test Ratings are Specific to My Fully Calibrated Test Equipment!  The tubes are put through a Life Test and each plate is warmed and measured for emission, leaks and shorts! Each tube is thoroughly inspected, they are described accurately and listed based on fair value...    All tubes manufactured emit some type of sound, hum or slight microphonic! Noisy tubes would always be auctioned or tossed...  I mark every tube in order to avoid tube rolling!  Variations in Line Output and Test Equipment excludes any claims regarding matching test results on any equipment other than mine...  *Test results from different Test Equipment IS NOT Guaranteed! International Buyers Welcome! I use eBay Global and USPS 1st Class International exclusively, unless otherwise stated... I am unable to change declared value on customs forms, and International Buyers are responsible for all taxes, customs and additional fees!  Each tube is fully insured, boxed and shipped safely...  ? *Honesty, *Reliability and *Integrity are *Everything ?The tubes are put through a Life Test and each plate is warmed and measured for emission, leaks and shorts! Each tube is thoroughly inspected, they are described accurately and listed based on fair value...    All tubes manufactured emit some type of sound, hum or slight microphonic! Noisy tubes would always be auctioned or tossed...  I mark every tube in order to avoid tube rolling!  Variations in Line Output and Test Equipment excludes any claims regarding matching test results on any equipment other than mine...  *Test results from different Test Equipment IS NOT Guaranteed! International Buyers Welcome! I use eBay Global and USPS 1st Class International exclusively, unless otherwise stated... I am unable to change declared value on customs forms, and International Buyers are responsibl Country of Manufacture United States Brand Raytheon Country/Region of Manufacture United States MPN 6SN7 VACUUM TUBE VALVE RADIO TUBE HI FI Model 6SN7 GTB Type Preamp Tubes