Tubes (rare)
Most of our Tubes for Sale are in our eBay Storefront.
Click [HERE] to visit our eBay store.
———- Additional Tubes For Sale ———-
The following list consists of rare, unique, or oddball tubes that are not listed in our eBay store. If no price is given, then we are listening to offers for that item.
W-41187 Auto Expressionator tube. $75 + postage. This is a very rare tube that goes into the output stage of a few 1930s Crosley round-dial console radios and (in theory) works as a “sound expander” to colorize the sound. Good continuity, tight base, polished pins. Try to find another one! This is the only one I have ever owned in 18+ years in the radio collecting hobby.
Sylvania #50 engraved-base Audio Triode tube, TESTS NEW. $275. Truly a beautiful tube, Made in USA, Sylvania engraved-base, ST-glass, Black Plate, clear-top, large solid square getter. Nice and clean, shiny flashing, shiny pins, no visible plate wear. Awesome. Tested perfect new test score, scoring 1550 micromhos on the true micromhos scale with calibrated Hickok 6000 tube tester (a score of 1500+ is perfect new), and also without shorts or leakage. Top-quality audio triode.
Marathon MX-280 Globe #80 rectifier tube. $450. Features MESH PLATES construction! Each diode section tests strong Emission, comparable to a new #80. Look at that Glow! You can see right through the Mesh Plates into the filament! Engraved-base “MARATHON MX-280″. Beautiful tube for serious collector.
6 Telefunken 12AX7 Long Smooth 17mm Plates. $540 for this LOT of 6 Telefunken 12AX7 ECC83 17mm Long Smooth Plates Tubes, Made in Germany. Top Quality. All test excellent, very close to new. Characteristics: Made in Germany, Diamond bases, Long 17mm perfectly smooth plates, Top round halo getter. There is no silkscreening left on any of the tubes, new white boxes will be supplied for professionalism, and each box will be labeled and test scores recorded. Test results (diamond base code is provided in parenthesis):
* Tube #1 (11,2): Triode #1 = 102, Triode #2 = 105
* Tube #2 (14,2): Triode #1 = 98, Triode #2 = 98
* Tube #3 (4,2): Triode #1 = 98, Triode #2 = 101
* Tube #4 (11,2): Triode #1 = 93, Triode #2 = 94
* Tube #5 (02,2): Triode #1 = 104, Triode #2 = 98
* Tube #6 (12,2): Triode #1 = 93, Triode #2 = 100
* No shorts or leakage
* Test scores from my professionally calibrated Jackson 648A dynamic plate conductance tube tester. (Scores of 70+ are good, 100 range is new). Since tube testers vary in design and methodology, your test results may vary.
