For those of you not old enough to have had a black-and-white TV, you can see they were not actually white, but a bluish tint. Very well preserved/restored equipment.
Not likely that I will replace our 70-inch 4K Sony with one of these On Tuesday, January 12, 2021 at 11:48:53 AM UTC-8 Paul Andrews wrote: > I have a whole bunch of Predictas. I'll try it but I doubt it will work > because of the large gap between the CRT and the safety glass. Here are the > two I have restored: > > [image: IMG_3339.jpg] > > [image: 20210112_194622001_iOS.jpeg] > > On Monday, January 11, 2021 at 5:33:28 PM UTC-5 gregebert wrote: > >> 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/5609a0ed-c7e3-4575-91e1-64435ef49f39n%40googlegroups.com.
