a real challange?

[Yamamaya42]

first test fitting

https://imgur.com/YaNjW2E
https://imgur.com/xAz5lG8
https://imgur.com/6deGCHw
https://imgur.com/PymKJqn

Still gotta do some sanding, find paint that matches the CRT cover color, perhaps add some trim around the edges on the front, and get a clear plexyglass top.
also,make a opening for the speaker when I get it.

[Yamamaya42]

I now have a spare FBT for this set (Ram XO-36) in my paws, it came today!

I never would have guessed that one for this would be easier to get than one for a CTC-16XL :/

And even though this thing is "NOS", there are already tiny cracks in the "doughnut" on it, but I don't think that really matters much. :p

[Electronic M]

The CTC-16 and a good number of color RCAs were notorious for eating flybacks but Zenith and a number of other brands almost never blew a fly....go back to the late 40s and it was the other way around....

[Yamamaya42]

here it is with knobs and faceplace
https://imgur.com/2A81IVs

[MadMan]

Nice!

[JohnCT]

Originally Posted by Electronic M

The CTC-16 and a good number of color RCAs were notorious for eating flybacks but Zenith and a number of other brands almost never blew a fly....go back to the late 40s and it was the other way around....

Zeniths were pretty good about flybacks, and RCAs from the early 60s until the XL-100 came out about 1971 were tough on them.

But, Zeniths were prone to yoke failure wheras we NEVER saw an RCA color yoke fail ever.

John

[Yamamaya42]

now painted

https://imgur.com/AWn6Qn3

however, due the current virus situation, there has been a run on plexiglass, and it's hard to get in large pieces, and thus the prices have gone WAY up, i couls only get too big or too small, the piece I got was $30, to get larger would have been over $80, and I would have had to cut a good part of it off to cover the entire top, so I did the best with the smaller. :/

[Electronic M]

Originally Posted by JohnCT

Zeniths were pretty good about flybacks, and RCAs from the early 60s until the XL-100 came out about 1971 were tough on them.

But, Zeniths were prone to yoke failure wheras we NEVER saw an RCA color yoke fail ever.

John

By the early 50s Zenith flybacks were solid , but the late 40s early 50s flybacks found in Zenith portholes were fairly high failure...worse than the contemporary 630 RCA variants.

[JohnCT]

Originally Posted by Electronic M

By the early 50s Zenith flybacks were solid , but the late 40s early 50s flybacks found in Zenith portholes were fairly high failure...worse than the contemporary 630 RCA variants.

Before my time Tom, before my time. I had heard of the legendary 630 by the old timers in the TV trade when I was the young gun in the 70s helping the old guys with transistors, but had never seen one until maybe 10 years ago at a swap meet. My dad was fond of servicing them.

But I remember my dad and older brother replacing flybacks on RCA color TVs we sold that were still within warranty - the nastiness peaking about 1968 or so. Back then, RCA supplied parts, but did not pay labor to servicing dealers.

Getting off the topic a bit, but I remember when RCA introduced the XL-100 in 1971, they allowed the owner to have *any* service company repair an XL-100 in warranty. That was short lived and they went back to standard ASCs a year or so later.

John

[Yamamaya42]

what I don't really get is, why is something with a 12 inch diameter CRT limited to being hidden behind a 7.5 x 10 in window?
could it not have been a bit bigger?

[old_coot88]

Originally Posted by Yamamaya42

what I don't really get is, why is something with a 12 inch diameter CRT limited to being hidden behind a 7.5 x 10 in window?

Probably to restore the lost corners of the picture, albeit at the cost of a smaller pic. Just guessin'.

[jr_tech]

Originally Posted by old_coot88

Probably to restore the lost corners of the picture, albeit at the cost of a smaller pic. Just guessin'.

Those corners come at a cost of a considerably smaller picture size...compare these two GE sets that have 10” round CRTs.



jr

[Electronic M]

Originally Posted by JohnCT

Before my time Tom, before my time. I had heard of the legendary 630 by the old timers in the TV trade when I was the young gun in the 70s helping the old guys with transistors, but had never seen one until maybe 10 years ago at a swap meet. My dad was fond of servicing them.

But I remember my dad and older brother replacing flybacks on RCA color TVs we sold that were still within warranty - the nastiness peaking about 1968 or so. Back then, RCA supplied parts, but did not pay labor to servicing dealers.

Getting off the topic a bit, but I remember when RCA introduced the XL-100 in 1971, they allowed the owner to have *any* service company repair an XL-100 in warranty. That was short lived and they went back to standard ASCs a year or so later.

John

I was born in 1991 and and work on pretty much anything/everything TV/radio/audio made before 1976 so everything I fix is before my time...It all fascinates me so I try to learn as much as I can about everything.

[old_coot88]

Originally Posted by Electronic M

I was born in 1991 and and work on pretty much anything/everything TV/radio/audio made before 1976 so everything I fix is before my time...It all fascinates me so I try to learn as much as I can about everything.

I retired from the trade vocationally in the mid-'80s, never dreaming that someday I'd be able to do the same stuff 'vicariously' thru a yet-uninvented magic medium.

[Yamamaya42]

https://imgur.com/a/pdV17xU

speaker hole added ( and speaker), and speaker cloth.

once I get that face-plate put on for real, not just laid in place, will add trim at top and bottom of speaker cloth, but the face-plate must be centered on CRT first.