Ira and.... The first round color crt was the 15AXP22 which came in the RCA CT-100. The first 21" round crt was the 21AXP22 which was unique because, unlike its predecessor it had a metal funnel/bell instead of a glass one. That metal bell carried the 2nd anode voltage and could really carry a punch to the unsuspecting technician....don't ask how I found out...more than once.... The 21FBP22 and 21FJP22 were the first all glass 21" color CRT's. The difference between the 21FJP22 and the 21FBP22 is that one had a bonded/slightly frosted safety plate, the other did not and was mounted behind a clear glass safety plate...Despite the issue of reflections, I always felt the version with the clear glass had a sharper picture.....
On Thursday, January 7, 2021 at 8:54:46 PM UTC-5 Ira wrote: > The same was true about black and white crt's, all were round for quite > some time. IIRC the first 21" round color crt was a 21AXP22? Ira. > > On 1/7/2021 2:40 PM, 'orange_glow_fan' via neonixie-l wrote: > > When Color TV's first came on the market in the early 50's all of them had > round CRT's. The first ones were 15" CRT's. Around 1954 RCA introduced a > 21" round CRT and they were the standard until around 1963 when the first > rectangular CRTS entered the market. I suspect this film was made during > the short time when both versions were available. The first practical, > consumer color tv was introduced by RCA in 1953 and they sold about 4,000 > of them at a cost of $1,000, about $8,000 dollars in 2021 dollars... > > > On Thursday, January 7, 2021 at 4:19:16 PM UTC-5 Bill van Dijk wrote: > >> I believe the round tubes were for the cheaper TVs. >> >> >> >> >> >> *From:* [email protected] [mailto:[email protected]] *On >> Behalf Of *Yohan Park >> *Sent:* Thursday, January 07, 2021 3:50 PM >> *To:* neonixie-l <[email protected]> >> *Subject:* [neonixie-l] Re: Fascinating film about 1960s colour CRT >> manufacturing >> >> >> >> Enjoyed watching that, thanks for sharing. >> Any idea what the large round tubes were used for back then? >> >> On Thursday, January 7, 2021 at 1:40:27 PM UTC+1 mikeselectricstuff wrote: >> >> https://www.youtube.com/watch?v=7IrSLPVkxCo >> >> -- >> You received this message because you are subscribed to the Google Groups >> "neonixie-l" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web, visit >> https://groups.google.com/d/msgid/neonixie-l/a1e53271-e44a-437a-ab0f-d6f58c0a7b64n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/neonixie-l/a1e53271-e44a-437a-ab0f-d6f58c0a7b64n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- > You received this message because you are subscribed to the Google Groups > "neonixie-l" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > > To view this discussion on the web, visit > https://groups.google.com/d/msgid/neonixie-l/9595732c-e19c-4243-b1a1-e5c8c4da75d9n%40googlegroups.com > > <https://groups.google.com/d/msgid/neonixie-l/9595732c-e19c-4243-b1a1-e5c8c4da75d9n%40googlegroups..com?utm_medium=email&utm_source=footer> > .. > > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/f69f40a5-d2a3-48c9-8afb-daf47feff356n%40googlegroups.com.
