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Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 0
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 1
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 2
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 3
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 4
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 5
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 6
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 7
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 0
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 1
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 2
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 3
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 4
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 5
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 6
Vintage MERCURY ELECTRONICS MODEL 102 TUBE TESTER, US $490 – Picture 7

Vintage Mercury Electronics Model 102 Tube Tester

US $490

  • Goldthwaite, Texas, United States
  • Jun 9th
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Here is a very nice Mercury Model 102 tube tester in a dove-tailed wood box in excellent condition.  The electronics chassis look super clean.  This unit seems to work fine, as tested several vintage tubes.  Comes with a copy of the Mercury instructions and table of settings for various tube part numbers.  I also sprayed DEOXIT on the slide switches. Tube under test is a 12AX7.  Also comes with a converter socket to allow testing of nuvistors.  I did not test every function of this tube tester, but did check for filament voltages on all the voltage selections.  Apparently the prior owner marked some setting changes, which may need to be ignored.  Best to compare to a known new tube in order to calibrate any tube tester.  I did check the resistors and found one that was out of tolerance on the high side, so paralleled with another resistor to bring it into spec (1200 ohm read over 1500 ohms); this resistor does affect the meter circuit and may explain why some settings were changed.
“missing the 7 & 9 pin straightners”
Brand Mercury
MPN Does Not Apply
Model 102
Country/Region of Manufacture United States

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