Granite City ==> tube tester
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This is a Dyna-Jet solid state mutual conductance tube tester for testing vacuum
diode tubes. It is in excellent apparent condition and comes with a manual.
The unit has been tested as follows:
- It powers up
- If I press EMISSIONS TEST or SHORT TEST button without a vacuum
tube inserted, the indicator shows BAD.
- If I insert a good Amperex tube into the proper slot (I have
a few amperex tubes for sale, check out my other auctions),
and then press EMISSIONS TEST or SHORT TEST, the indicator
shows GOOD. (see pictures).
The case looks nice too.
:SATISFACTION:
(Click on the thumbnail images to enlarge)
