Triad CRT OEM's

[ARC Tech-109]

Who were the OEM mfr's of the triad tubes back in the 60's thru the 70's before the Asian invasion? I know Zenith and RCA had their own but I can't seem to find much more beyond this.

[Electronic M]

I don't know for sure about triad, but some of the smaller labels sold used tubes or grade B and C parts relabeled. A large part of the reason for the washoff branding on 7 and 9 pin tubes is the OEM didn't want any responsibility or name association with these budget used tube sellers. Some of them went to new Japanese tubes when they saw how cheap they were

[ARC Tech-109]

I vaguely remember some of that back in the 90s, I was trying to get a handle on the who was making the older 23" jugs when triad tubes were the only game around. The 25JP22 in my Mag T940 is losing the red gun to old age and I'm on the hunt.

[bgadow]

In a trade magazine from about 68-69 I saw a clipping announcing that another company was starting to produce color picture tubes, and it went on to list all of the American companies that were producing them. As I recall, at the end of the sixties the list looked something like this:
Admiral
General Electric
National Video (Motorola)
Philco-Ford
RCA
Sylvania
Westinghouse
Zenith/Rauland

Not long after that, Channel Master was producing 100% new CRT's, per another article I've read.

I believe National Video went bust, maybe before the sixties were over. Philco-Ford sold it's tube plant to Zenith. The Admiral plant was dismantled sometime in the seventies. Westinghouse got out of the TV manufacturing business about 1969-70 but continued making picture tubes well into the seventies; I know Motorola was a customer and I think Magnavox. I suspect General Electric continued production until around the time they bought RCA. Sylvania was rolled into North American Philips. Zenith shuttered it's picture tube operation in the 90s after that debacle with a lemon tube design. North American Philips and RCA were still cranking out larger picture tubes into the late 90s and maybe early 2000's.

As usual, too much information. Some of it might even be right!

[ARC Tech-109]

Fills in some gaps for me, thanks for the info!

[zeno]

bgadow covered it well & quite accurate as I remember it.
Your Maggy probably started life with a RCA jug. When they went SS they
used the RCA in- lines with bonded yoke on 13, 17, & 19" sets. With US built CRT's look for the EIA number & that will show who made it. Also the
style of the tag usually carries over to other brands.
BTW IIRC National Video made projo tubes into the early 70's
for the Advent Video Beams

Zeno
LFOD !

[ARC Tech-109]

I remember the videobeam, found a Novabeam behind a TV shop during the mid-80's with a bunch of strange etches across the lenses. Turned out to be a fungus that actually ate glass. The Novabeam worked but what a giant pile of... well you fill in that blank.

Don't know what the Mag had originally, the original tube got weak in the 80's and the set was replaced with a System-3 that also eventually had CRT problems and I ended up with the Mag, that was around 1985 and I still have it. I replaced that jug with another used one I got from the neighborhood TV shop out of a Motorola drawer and it lasted another 20 years until it too went weak. The one in there now is an unknown that I got with a serious cataract and ended up breaking the face glass trying to remove it the summer of 2006, I'm assuming it's a Silverama given the shine vs the Motorola it replaced and it's never looked very good.