1958 Westinghouse roundie?

[Electronic M]

Originally Posted by dieseljeep

I only saw one of those!
A used TV store, I hung around had one. There was a notice on the back, that stated that the set had been converted to use a 21CYP22.
I never knew the true meaning of the statement until several years later, that they made a rectangular CRT, that was a flop.

Part of me wonders if that CYP conversion was from an AXP. IIRC some makers were still using AXPs that late.

[benman94]

Originally Posted by Electronic M

Part of me wonders if that CYP conversion was from an AXP. IIRC some makers were still using AXPs that late.

+1

It's my understanding the manufacturers would lend a set to Sam's for the photofact. They probably switched the whole line over to 21AXP22s right from the factory.

Most of the smaller manufacturers were using the 21AXP22 until the end of 1958. I think Motorola holds the record though, they were producing TS-905 sets well into the early 60s. I've seen ads as late as 1963 for the 21CT2M and 21CK3!

[jr_tech]

IIRC, Westinghouse transitioned directly from the in house made 22EP22 sets which flopped in 1957 to a 21CYP22 based set for 1958.

jr

[Electronic M]

Originally Posted by benman94

Most of the smaller manufacturers were using the 21AXP22 until the end of 1958. I think Motorola holds the record though, they were producing TS-905 sets well into the early 60s. I've seen ads as late as 1963 for the 21CT2M and 21CK3!

Do you know of date codes in TS-905s approximately that late? While it is entirely possible they were making them that late, I'd be more inclined to think they made a large run in the late 50's that stocked a warehouse, and either realized they were not selling well enough to merit making more, or decided that it would be a good excuse to wait to engineer another chassis until the ones in stock sold.

[benman94]

Originally Posted by Electronic M

Do you know of date codes in TS-905s approximately that late? While it is entirely possible they were making them that late, I'd be more inclined to think they made a large run in the late 50's that stocked a warehouse, and either realized they were not selling well enough to merit making more, or decided that it would be a good excuse to wait to engineer another chassis until the ones in stock sold.

I know of a 21CK3M with all '62 datecodes on the small signal tubes and '63 in the 21AXP22A. I'll see if the owner wants to post here.

[dieseljeep]

Originally Posted by Electronic M

Part of me wonders if that CYP conversion was from an AXP. IIRC some makers were still using AXPs that late.

It could easily be that it was originally a roundie!
All I remember, that the set design didn't impress me. All PC board, series string, transformerless design. If you look at the picture, the panel on the left side of the cabinet was removable and the convergence settings were located which was probably a plus.
By using an all-glass CRT, made a simpler conversion kit, as you didn't need all those insulators needed for a metal CRT.
It seems to me, that many of those sets came from the factory already converted.
BTW, the Sams is dated 1959.