These have large black plates, are ruggedized with extra support rods, and have 1955 dates (5-17 and 5-39). They were tested on our Triplett 3444A tester with results of 2100/2100 and 2050/2150, where 2200 per section is the expected new value and 1400 is the acceptable minimum.
These have large black plates, are ruggedized with extra support rods, and have 1955 dates (5-17 and 5-39). They were tested on our Triplett 3444A tester with results of 2100/2100 and 2050/2150, where 2200 per section is the expected new value and 1400 is the acceptable minimum.
Fine pair of Sylvania 5692 brown base tubes, labeled for Westinghouse, with original boxes. Gm matched to about 9% difference on the Amplitrex AT1000. Shiny black plates, micanol bases, multiple support rods, thick glass, triple micas, and double getters all make for a bulletproof tube.
One pair of RCA 5692 tubes. TV-7D/U tested at 100, 95 and 93, 90.