Does anyone still have a functioning TV with a CRT in it ? I'll bet you can get nixies to glow by holding them in front of the glass, especially if you are touching some pins. There's enough charge in the HV area to give a mild zap when you touch the screen, due to body capacitance.
So many things I remember, and utterly HATE, about those old TV's........ On Monday, January 11, 2021 at 1:21:15 PM UTC-8 orange_glow_fan wrote: > 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/0e6793f6-7c38-4e5d-8d79-003b56e5459an%40googlegroups.com.
