Here is a very desirable PAIR of G.E. 6550A audio power tubes! Perfect for your McIntosh MC-60, Dynaco Mark III, and many other amplifiers! These are JAN Military types-with the green print on the glass envelope.
Item Tag: Vacuum Tube
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GE 6550A PAIR -USA JAN Military green print- poss NOS PAIR!!
Here is a very desirable PAIR of G.E. 6550A audio power tubes! These were found in a huge lot of NOS military tubes and are possibly NOS- but we’re not 100% sure on this pair. Perfect for your McIntosh MC-60, Dynaco Mark III, and many other amplifiers!
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Two GE 6386 Tubes /Amplitrex Tested +100%/D Get /x3 Mica /Black Plates 1958 Date
Two GE 6386 tubes. Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Etched 6386 numbers on glass. SPEC (100%) value for 6386 tube = 4000 gm and 9.6 mA plate current. PASS/FAIL grade for 6386 (65% of spec) = 2600 gm and 6.2 mA plate current.
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Two GE 6386 Tubes / Amplitrex Tested +100% / D Getter / X3 Mica /Black Plates
Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). Two GE 6386 tubes. Etched 6386 numbers on glass. SPEC (100%) value for 6386 tube = 4000 gm and 9.6 mA plate current. PASS/FAIL grade for 6386 (65% of spec) = 2600 gm and 6.2 mA plate current.
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Two GE 6386 Tubes /Amplitrex Tested / D Getters / x3 Mica / Black Plates 1950’s
Two GE 6386 tubes. Tested on Amplitrex AT-1000 computerized tube tester (fixed bias mode). D getters / square getters / angle D getter. Etched 6386 numbers on glass. SPEC (100%) value for 6386 tube = 4000 gm and 9.6 mA plate current.
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Lot of 3-GE General Electric GL-814 / 814 Vacuum Tube Made in USA w/ Box(es)
The glass envelopes are clear, the bases are tight, and the pins show minimal to no wear (as seen in image_5. png and image_7. ).
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5963 Westinghouse GE radio audio amplifier vintage audio vacuum tube valve 12AU7
Tube has grey ribbed wide plates, top O getter. tube tests: 88, 86 %.
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5 GE General Electric JAN-12AT7WC 6201 Tubes Sup Rods Copper Posts Tested
Up for sale are 5 GE General Electric JAN-12AT7WC 6201 Tubes.
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15 Vacuum TUBE SYLVANIA /GE/ RAYTHEON/ RCA/ Zenith/ Westinghouse 5U4GB
Nice lot of 15 tubes -5U4GB. They test at 80% – 100% (B&K 700) Boxes match tube inside.
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10 Sylvania 6BQ5 EL84 Vacuum Tubes 2 GE EL84 2 RCA EL84
TOTAL 14 ALL TEST STRONG -14 TOTAL 1O SYL, 2 RCA, AND 2 GE