Branded Sylvania 310A Vacuum Pentode Tube Valve Rohre TV7 Tests New -48 USSR For Sale

This is a vintage 310A which was manufactured before the break up of the Soviet Union. Sylvania it is not . However the tube quality is very good . Much better then the present day reproductions . In one mans opinion . The base was a tad loose . That has been corrected with clear aquilic nail polish .Full disclosure . Now it is firm . The life test went well . There are no shorts . Tv7 test score is 30 minimum value . This tests at 48 on my calibrated military tube tester . Paul Hart performed the calibration.

There is only one . Has the mesh plate with the ufo getter which is indicative of a USSR made valve . Grab yourself a peice of history . At a bargain basement affordable number of $75.

$6.50 shipping .

Bulletproof packaging .

Free returns .

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