#15 GE 6SN7 dual triode electronic amp vacuum tubes

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#15 GE 6SN7 dual triode electronic amp vacuum tubes WELCOME! Available for you to own: General Electric 6SN7 Dual Triodes tubes Up for bid is a batch of used 6SN7 GE brand, made in USA, dual triode electron tubes. These tubes are all American made and are some of the best quality tubes ever made. They came out of TV dealer’s stock in the late 1970’s. They are from my husband’s TV collection that he amassed over a period of 50+ years. T are 15. All are in good or excellent condition and many can be matched up in pairs. Purchase with confidence because all these tubes have been all tested on a Hickok Model 533 Dynamic Mutual Conductance tube tester. These professional testers are state-of-the art. They test the tube under actual operating conditions in their ability to amplify. The tester used has been restored with new rectifiers and components. This is the very best tube tester as it tests the tubes in its operating condition and is considered the standard tester by which all other testers are compared. (Other non-mutual conductance testers are “drug store type” testers and are only considered adequate for quick references as they give a vague good or bad rating.) What this means to you is that you will get the results of the Micromhos reading for your tube in removable ink on the glass envelop, which is included with your purchase. read more

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