All tubes are tested and or matched on the Amplitrex AT1000 digital tester, in. See Pictures for Test Scores. For best results – before you install your tubes be sure that your power is off, that the tube sockets are tight and cleaned periodically with a product like Detoxit 100%.
Item Tag: Vacuum Tube
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Rare Philips Admiral Holland 6KG6A EL509 Test NOS 3-Mica Serious Tubes D239
Rare Admiral Holland 6KG6A EL509 Test NOS Grey Plate 3-Mica Serious Tubes D239. The tubes need to get to you in one piece. But this the way of the world now. We are always looking to buy more tubes.
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3 Amperex/Scott 7189/EL84/6BQ5 Vacuum Tubes : D-Getter/Same Date Code (rX3 X8L)
Up for sale is Three Amperex/Scott EL84 / 6BQ5 Vacuum Tubes. Three Amperex/Scott 7189/EL84/6BQ5 Vacuum Tubes. I tested tubes on my TV7B/U tube tester. Test Results : Tube 1 – 60. Tube 2 – 63. Tube 3 – 69.
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4 X Amperex Bugle Boy 6DJ8 / ECC88 tubes, made in Holland, Tested Excellent (43)
6DJ8 / ECC88 has a center value of gain 27 on this tube tester. Gain in Mu, Conductance (Gm) in umho. ( Tube tester not included ).
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4 X Amperex Bugle Boy 6DJ8 / ECC88 tubes, made in Holland, Tested Excellent (42)
6DJ8 / ECC88 has a center value of gain 27 on this tube tester. Gain in Mu, Conductance (Gm) in umho. ( Tube tester not included ).
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6DJ8 PAIR of RCA labelled NOS tubes. Made in Holland by AMPEREX.
The 6DJ8 is considered to be one of the very best preamp tubes. Thse are in their origial matching boxes. They each have a top mounted ‘halo’ getter. They were made in Holland by Amperex for RCA. I warrant these tubes to be as described when you receive them.
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6BQ5 EL84 B9B 1959 radio audio amplifier vacuum tubes valves Blackburn Britain
Date code etched B9B, made February 1959, made in Blackburn.
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Closely Matched Pair Philips EL84 6BQ5 Code rX3 X9C Tested Good Tube
Label Motorola, Tested Good, Closely Matched, Made in Holland Sittard Factory.
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Matched Pair EL34 / 6CA7 Vacuum Tubes Test on Maxi-Matcher 2 Amperex Holland NOS
These were recently tested and matched on a professional Maxi-Matcher 2 tube tester for strong, balanced performance. Important: Vacuum tubes are delicate electronics. • Matching: Professionally matched pair on the Maxi-Matcher 2 (plate current and transconductance readings shown in photos).
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4x ECC88 / 6DJ8 audio tubes VALVO / PHILIPS – NOS – ECC 88 – 1965
With Delta codes, silver shield and o getter. Two codes are very hard to see. RARE and EARLY version. ORIGINAL boxes. See pictures. NEW from old production (NOS). Tested on Funke W19S military tester with BEST results: around 12.5/13.5 – 12.5/13.5 – 12/12.5 – 12.5/13.5.