Quote:
Originally Posted by Steve D.
John,
Very nice find. And a pair of them no less. Your set looks to be the Sylvania table/consolette model 31T304 "The Granada." The other, as you mentioned, is the Sylvania console model 31C606 "The Saratoga." I believe Sylvania only produced the two models starting in 1957. Both were available in Mahogany and Blonde Korina finishes. The control layout above the screen would suggest this is a Sylvania designed chassis.
-Steve D.
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If that's the case, then the back cover on mine must not be its original. The tag attached to the back bears "31C606M" as the Model number. I guess now in addition to a replacement 21AXP22, I'll have to find an original 31T304 back.
Quote:
Originally Posted by John Folsom
Very interesting set, what a great score! Is this a Sylvania design, or a RCA clone chassis?
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It's an original Sylvania design, and quite a primitive one in comparison to most other color sets of the same year. Sylvania used a passive HV shunt regulation device on this chassis when I seem to recall that the active shunt regulator tube (6BK4) had been available for some time and had been used by RCA on all color designs since the CTC-4. The power switch and the channel selector use linear "lever" actuators. In fact, the channel selector operates the tuner in a "ratchet-like" manner. Pressing the spring-loaded lever to the right ratchets the channel selector incrementally (2 , 3 , 4, ..., 12, 13, 2) in only the forward direction.
When the 21AXP22 was connected to the CRT tester, it produced the telltale "neck fireworks" of a slow-leaker gone to air. The phosphor is undisturbed, though, so that tube might eventually become rebuildable. Does anyone know whether Hawk-Eye has achieved successful rebuilds of slow-leaker tubes since discovering the VacuSeal product?