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Set of 9 x 6J5 RCA Ken-Rad Sylvania NU Vacuum Tubes - Calibrated TV7 Tested
Set of 9 x 6J5 RCA Ken-Rad Sylvania NU Vacuum Tubes - Calibrated TV7 Tested
Set of 9 x 6J5 RCA Ken-Rad Sylvania NU Vacuum Tubes - Calibrated TV7 Tested

Set of 9 x 6J5 RCA Ken-Rad Sylvania NU Vacuum Tubes - Calibrated TV7 Tested

$ 20.6

  • Brand: RCA
  • Country/Region of Manufacture: United States
  • Model: 6J5
  • Seller Notes: “Tested on Dan Nelson restored, upgraded and calibrated, TV7A/U with Digital Meter and mA”
  • Type: Vacuum Tube

Description

Set of 9 x 6J5 Vacuum Tubes Test Results: Tube 1: 96 = 2400 (Gm) at 11.8 mA (RCA, date code: DJ) Tube 2: 107 = 2675 (Gm) at 12.7 mA (RCA, date code: MA) Tube 3: 103 = 2575 (Gm) at 12.1 mA (RCA, date code: MI) Tube 4: 103= 2575 (Gm) at 11.7 mA (RCA, date code: 422) Tube 5: 98 = 2450 (Gm) at 11.6 mA (KEN-RAD, date code: 8-30 188-5) Tube 6: 75 = 1875 (Gm) at 9 mA (KEN-RAD, date code: ?) Tube 7: 103 = 2575 (Gm) at 12.1 mA (TUNG-SOL, date code: 322PM3) Tube 8: 91 = 2275 (Gm) at 10.3 mA (Sylvania, date code: 32 6) Tube 9: 87 = 2175 (Gm) at 10.3 mA (NU, date code: DC) NO SHORTS 'Bogey' = NOS Factory Vintage New Spec for a 6J5 = 2600 micromhos (Gm) Transconductance at 9 mA (Anode) Plate Current (+/- 10%) when tested at 250VDC Plate Supply Voltage. Testing on any TV7 tube tester the Minimum Good value is 50 = 1250 Gm . This represents about 65% of tube life. (Note all Version of TV7s test at a Maximum of 150VDC Plate Supply Voltage and 135V for Screen/Grid Volts Our test set: Tested on a TV7A/U Dan Nelsen Restored, Upgraded & Calibrated with Digital Meter which tests Transconductance (Gm) and mA Plate Current readings. WE PACK VERY WELL AND SHIP FAST (within 1 business day), Many Years of Exp. Shipping Fragile Vintage Electronics, Speakers and Vacuum Tubes.