Hi: I have a 1975 Sylvania tube manual open, and it lists on pg 512 "short" specs for the 19TP22. The base is 20A, same as the 15G, deflection angle is 60 degrees, max second anode HV is 20 KV. Reading this drives me to speculate that it IS a larger version of the 15G. I'll try to find more in depth specs, but many of my books are packed away due to renovations. Next week, I'll look in the library at the Vintage Communications Museum in Windsor CT, and post any further info I can come up with. It seems likely that this tube was obsolete very quickly. Probably just as well, at least from a practical standpoint, but it would be interesting to locate an actual TV in which the 19T was used.
A good mystery is a great way to keep the mind active.
Kevin
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02-21-2010, 04:03 PM
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