Two RAYTHEON 6AU6 TUBES. “O” Getters. RAYTHEON Mfg. SHERWOOD Water-Based Tube Lettering. Grey Plates. Tube #1: GM[%]: 84. Fully Vetted IF/RF Pentode Tubes. Value Added Tubes Tubes Tested on an AMPLITREX AT-1000 Tube Tester.
Item Tag: 6AU6
Two 6AU6A Tubes RAYTHEON REALISTIC GM[%]: 84 86 EM[%]: 85 86 AMPLITEX
Two 6AU6A TUBES. Tube #2: GM[%]: 86, EM [%]: 86. Tube #1: GM[%]: 84, EM [%]: 85. Good EM > Long Life. Fully Vetted IF/RF Pentode Tubes: Fixed Bias on AMPLITREX AT1000. Value Added Tubes Good GM > Powerful Pentodes.
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6AU6WC 6AU6A NOS GE radio audio amplifier vacuum tube 2 valves tested 6AU6 EF94
All are grey ribbed plates, top O getter.
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1950s JHS Sylvania 6AU6 tube Black Plate Mil Spec
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Two RAYTHEON 6AU6 Tubes Black Plates D Getters GM[%]: 86 95 AMPLITEX
Two RAYTHEON 6AU6 TUBES. “D” Getters. Tube #1: GM[%]: 86. Fully Vetted IF/RF Pentode Tubes. Value Added Tubes Tubes Tested on an AMPLITREX AT-1000 Tube Tester. Black Plates. No Switching Tubes.
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NOS Westinghouse 6AU6 radio tube in original box,tested strong!,6AU6A
It had a strong reading of2700 micromhos. and No shorts or gas detected! Ref: Minimum readings should be 1380 micromhos (60%) and new tubes should test at 2300 or more micromhos.
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2X – RCA JAN 6AU6 WC Vacuum Tubes — CS2
RCA JAN 6AU6WC. Tubes were tested on an Amplitrex AT1000 in Fixed Bias mode. Quantity: 2 Tubes.
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Vacuum tubes 6AU6& 6AU6A RCA/ GE. Just Tested good FREE SHIP NOS?
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Two REALISTIC 6AU6A Tubes GM[%]: 95 112 EM[%]: 85 114 AMPLITEX
Two REALISTIC 6AU6A TUBES. Tube #2: EM : 112%, GM : 114%. Tube #1: EM : 95%, GM : 85%. Value Added Tubes Tubes Tested on an AMPLITREX AT-1000 Tube Tester. No Switching Tubes. There is normal variance in Test Results so I take this into Consideration.