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Promoted item:One 1950s-1960s Sylvania 12AX7 tube short black plates square getter tested used

One 1950s-1960s Sylvania 12AX7 tube short black plates square getter tested used

  • Silkscreened markings are 12AX7 Sylvania Made In U.S.A. 12AX7A CH " The yellow silkscreening shows very little wear. "12AX7" etched on glass (this is somewhat worn but still legible).
  • Condition
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  • 20d 2h 23m
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    The item is listed as a Top Rated Plus item

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This item is being sold by eBay Top rated seller.
Getter Construction: Top [] Angled. Type: 12AX7 / ECC83. Brand: Sylvania. Matched, Tested Guaranteed Vacuum Tubes. All tubes are guaranteed to be 100% as described or your money back.
12d 17h 1m left
$19.95
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This item is being sold by eBay Top rated seller.
You are bidding on a matched pair of mil-spec Sylvania 12AX7 ECC83 audio tubes. All tubes are tested on my calibrated TV-7/B or on my calibrated Hickok 539C.
12d 23h 21m left
$75.00
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This item is being sold by eBay Top rated seller.
13d 1h 55m left
$75.00
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From Hong Kong
Tube Type: 5751WA Black Plates 3 Mica Square Getter. All vacuum tubes through GS-5A China military tester for testing. Test results: (1) gm=0.90 / 1.20 ma/v. (2) gm=1.00 / 1.45 ma/v.
7d 20h 48m left
$89.99
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This item is being sold by eBay Top rated seller.
Getter Construction: Top [] Angled. Type: 12AX7 / ECC83. Brand: Sylvania. Matched, Tested Guaranteed Vacuum Tubes. All tubes are guaranteed to be 100% as described or your money back.
12d 16h 52m left
$19.95
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From Hong Kong
Tube Type: 5751WA Black Plates 3 Mica Square Getter. All vacuum tubes through GS-5A China military tester for testing. Test results: (1) gm=1.55 / 1.45 ma/v. (2) gm=1.45 / 1.60 ma/v.
8d 22h 54m left
$165.00
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From Austria
BLACK plate three MICA "D" or "Square" getter High quality dual Triode. NOS Matched balanced pair. Sylvania5751(1970-1973) Matching difference 0,5mA each system. Ask for invoice including te 20% VAT.
11d 7h 32m left
$159.00
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This item is being sold by eBay Top rated seller.
I have many other types of tubes ~ No Additional Shipping Charges. All tubes Guaranteed for 30 Days. Tested on a Hickok 6000A ; Min = 750/750. Micromhos :Nos = 1250/1250. 1210/1190
21d 14h 53m left
$38.99
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This item is being sold by eBay Top rated seller.
All Tubes Guaranteed. I have many other types of tubes~ No Additional Shipping Charges ~ Just search my store. All tubes are Guaranteed ~ Tested on a Hickok6000A: Micromhos. Min = 750/750.
1d 0h 38m left
$36.99
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From Hong Kong
Tube Type: 5751WA Black Plates 3 Mica Square Getter. All vacuum tubes through GS-5A China military tester for testing. Test results: (1) gm=1.60 / 1.50 ma/v. (2) gm=1.60 / 1.50 ma/v.
20d 7h 4m left
$175.00
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This listing is for a very nice Sylvania JHS 12AX7 vacuum tube. This is a very rare version of the tube; Sqaure getter and black plates. The tube is in very good cosmetic condition and looks to be N.O...
24d 23h 17m left
$64.99
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or Best Offer
From Hong Kong
Tube Type: CK - 5751 Black Plates Windmill Getter. All vacuum tubes through GS-5A China military tester for testing. Test results: (1) gm=1.50 / 1.45 ma/v. INTEGRATED TRANSPORT you can buy more than o...
25d 19h 42m left
$79.99
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This item is being sold by eBay Top rated seller.
Results:1060/1020. I have many other types of tubes ~ No Additional Shipping Charges. All tubes are Guaranteed for 30 Days. Tested on a Hickok 6000A ; Min = 750/750. Micromhos :Nos = 1250/1250
19d 6h 21m left
$29.99
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This item is being sold by eBay Top rated seller.
Results = 1010/1000. All Tubes Guaranteed. ~~~I have many other kinds of Tubes - Just Search My Store ~~~ Tested on a Hickok 6000A Micromhos. Min = 750/750. Nominal NOS = 1250/1250
3d 22h 21m left
$36.99
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This item is being sold by eBay Top rated seller.
Results = 45/43. I have many other types of tubes ~ No Additional Shipping Charges. All tubes Guaranteed for 30 Days. Tested on a TV 7 :Min = 32/32
19d 6h 21m left
$38.99
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This item is being sold by eBay Top rated seller.
One very nice pair of NOS tubes. These have been tested on a TV7 Tester.
5d 5h 33m left
$119.00
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This item is being sold by eBay Top rated seller.
Getter Construction: Top [] Type: 12AX7 [ECC83] Actual Brand: Sylvania. Printed Brand: Bell&Howell / Sylvania. Matched, Tested Guaranteed Vacuum Tubes.
12d 7h 18m left
$84.95
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From Hong Kong
Tube Type: CK - 5751 Black Plates 3 Mica Square Getter. All vacuum tubes through GS-5A China military tester for testing. Test results: (1) gm=1.40 / 1.45 ma/v.
25d 19h 39m left
$75.00
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