RCA 8417 Vacuum Tube High Power Output Tube Tested
RCA 8417 Vacuum Tube High Power Output Tube in generic box. Tube has been tested on a B&K Dyna-jet model 747 tube tester. Tube tests at 55 with 60 beeing the minimum good and 55 being consistent with a questionable tube. Although tube tests in the questionable range for mutual conductance on my tube tester, it does show a lotnof shiny getter remaining and works im circuit when tested on my Bogen MO-100a tube amplifier. Due to the age and the risk of damage due to misuse all vacuum tubes are sold as-is, no returns or refunds.
Sylvania 8417 Power Vacuum Tube Amplitrex Tested 90%
Tested 92% ip and 90% gm on an Amplitrex AT1000 (as photographed).
Matched Quad (4) GE 8417 Vacuum Tubes High Power Output Tube Tests Very Strong
Matched Quad (4) General Electric GE 8417 Vacuum Tube High Power Output Tube 3 in original box and 1 is in a generic box. Tubes have been tested on a B&K Dyna-jet model 747 tube tester. One pair (2) test at 78 and one pair (2) test at 85 with 60 beeing the minimum good. Although tested, due to the age and the risk of damage due to misuse all vacuum tubes are sold as-is, no returns or refunds.
