Military 807 Ceramic Base Tetrode Valve Tube Tests Good Made in England
Military 807 Ceramic Base Tetrode Valve Tube Tests Good Made in England See photos for condition. Tests good on Taylor Model 45C valve tester. Mutual conductance reading Gm 3.7 (Booked in Taylor manual at Gm 4.1). Filament continuity, cathode leakage, and mutual conductance test readings photographed respectively. UK shipping with MyHermes Tracked or Royal Mail. International shipping with Royal Mail International Tracked. I will combine postage on multiple valve orders. See my other listings!
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