5U4GB GE OWENSBOROUGH SHORT FORM 5U4
This GE short form 5U4G valve shows excellent bright getter and tests as EXCELLENT using my Avo VCM163 valve tester. Device test data: Ia = 120.0mA for both diode sections
Device specification 120mA delivery for both diode sections. So you can see we have 100% emission from this venerable beauty.
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5U4G ,NATIONAL UNION, VT-244 ,JAN, 5 RIB CHARCOAL ANODE, DATE CODE HN, APRIL 1944 WARTIME MANUFACTURE,5U4