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Yamamaya42 12-05-2019 08:39 PM

a real challange?
 
And I do mean challenge.
For I have the guts of an old FADA 895 Television.
And I do mean guts, as in no case / enclosure.
The story of this TV, it was built into the wall in a bar in the basement in my grandparents home in Pennsylvania, only the 10 inch screen ( face-place, controls ) could be seen from the bar, and the chassis was in a closet in another room behind.
It was in it when they got the place, and told me it never worked. ( only gave a raster )
when the place was sold, I did not want to see it destroyed, so I had it boxed up and shipped to me.

That was quite a few years ago.

Biggest problem is, no enclosure.
Another problem is, it has been damaged in the moves over the years, 1st IF coil is broken, have all the bits, not sure if it can be fixed.

It's VERY old and has been sitting for almost 40 years.


I'm not sure WHAT it is, but it DOES say FADA 895 on the chassis. And it looks a lot like an RCA 630 chassis.

What ever it is,,, it wont be easy.

Eric H 12-05-2019 09:03 PM

According the the Radio museum it was a large combo unit. https://www.radiomuseum.org/r/fada_895895.html

It was almost certainly an RCA 630 design with whatever mods it needed to work with the 12" tube and other components. It may or may not slide right in an RCA Cabinet.

Yamamaya42 12-05-2019 09:14 PM

Quote:

Originally Posted by Eric H (Post 3218439)
According the the Radio museum it was a large combo unit. https://www.radiomuseum.org/r/fada_895895.html

It was almost certainly an RCA 630 design with whatever mods it needed to work with the 12" tube and other components. It may or may not slide right in an RCA Cabinet.


It definitely has a 10bp4 in it, i took it out and tested it last year. ( good emissions )
https://imgur.com/oguZYoC
https://imgur.com/s5WkF39

Eric H 12-05-2019 09:23 PM

Are you sure? that looks like a 12" tube to me, or is there another one?

Eric H 12-05-2019 09:24 PM

The chassis looks straight up 630.

Yamamaya42 12-05-2019 09:47 PM

Quote:

Originally Posted by Eric H (Post 3218445)
The chassis looks straight up 630.


you are right,, its a 12lp4 ,, the numbers are hard to read because they are rubbed off,
but it is an 895
https://imgur.com/bMoZUb7

Electronic M 12-06-2019 09:16 AM

Quote:

Originally Posted by Eric H (Post 3218439)
According the the Radio museum it was a large combo unit. https://www.radiomuseum.org/r/fada_895895.html

It was almost certainly an RCA 630 design with whatever mods it needed to work with the 12" tube and other components
. It may or may not slide right in an RCA Cabinet.

The 10 and 12" round CRTs (and IIRC some 16s with the same deflection angle) could be driven by the same unmodified chassis the only difference being CRT/yoke mechanical mounting hardware.

I have a Stromberg Carlson TV-10 which is their TV-12* with a just a wood shim added to the mounting to accommodate the smaller CRT.

* Which is just a rebadged Dumont RA103 Chatham chassis in a Stromberg designed cabinet.

If you can figure out which RCA it best matches getting a new IF can should be fairly easy.
RCA successfully licensed the '630' chassis from 1946 to 1960 (as time went on licensees piled on mods to add AGC and large screen CRT support).

Cabinet wise you could probably use an RCA cabinet or any clone cabinet if you're not set on the exact FADA cabinet. The first two RCA sets the 630TS and 8TS30 used IIRC a wider knob layout than the later ones like the 8T241 and 9T246. Heck you could even build a custom cabinet as homage to the configuration you remember.

If you can't find a 12" cabinet you like you could get a 10" CRT and swap to it....lots of options.

Yamamaya42 12-06-2019 09:44 AM

Quote:

Originally Posted by Electronic M (Post 3218463)
The 10 and 12" round CRTs (and IIRC some 16s with the same deflection angle) could be driven by the same unmodified chassis the only difference being CRT/yoke mechanical mounting hardware.

I have a Stromberg Carlson TV-10 which is their TV-12* with a just a wood shim added to the mounting to accommodate the smaller CRT.

* Which is just a rebadged Dumont RA103 Chatham chassis in a Stromberg designed cabinet.

If you can figure out which RCA it best matches getting a new IF can should be fairly easy.
RCA successfully licensed the '630' chassis from 1946 to 1960 (as time went on licensees piled on mods to add AGC and large screen CRT support).

Cabinet wise you could probably use an RCA cabinet or any clone cabinet if you're not set on the exact FADA cabinet. The first two RCA sets the 630TS and 8TS30 used IIRC a wider knob layout than the later ones like the 8T241 and 9T246. Heck you could even build a custom cabinet as homage to the configuration you remember.

If you can't find a 12" cabinet you like you could get a 10" CRT and swap to it....lots of options.

If I do ever attempt to work on it, it will be after I pull the CTC-90 out of storage next year and start to bring that up. I doubt I'll ever find a tube / hybrid set to stick the 25vxxx22 into, & I don't just wanna leave it out for ever getting dust on it, so I might as well have it in a working set in the meantime, and perhaps something may show up later.

I have pretty much done all I can with the CTC-16XL , aside from the IF alignment issues, & the slightly annoying retrace lines that pop up 6% of the time, (most likely will never understand why.)
Now sitting in it's permanent location and used every week or so.

Yamamaya42 12-06-2019 10:17 AM

As far as the broken coil on the FADA, the inner core is broken, wire is seen torn off, but all parts are there, fixable, no idea, I would have to carefully remove the bits one day, and look at it under a microscope to see how bad the damage is and if it can even be fixed or not.
It's not that complicated.


https://imgur.com/DTPnF8w

Yamamaya42 12-06-2019 04:29 PM

been going through the bits i do have...

face plate :banana:
https://imgur.com/pNFiw9d

speaker.
https://imgur.com/XkgFHPS

inner part of broken coil :(
https://imgur.com/txoI21P

outer
https://imgur.com/issovqc

I may or may not have the knobs someplace in the shed, unsure
if not, I'm sure i can find SOMETHING to work on it at a future date

Electronic M 12-06-2019 06:12 PM

I'd track down a replacement coil. Life is too short and plenty of rough cabinet 630s get scrapped for CRTs....Someone will have the part.

Aside from that, you are a fairly tedious recap (trust me I've done 2.3 recaps of RCA sets in this family and there is another waiting a turn on my bench), and possibly some power resistors and troubleshooting away from a working chassis. You can get lucky and have it work after just caps....Heck one of the later ones IIRC an 8TK29 console that came into my hands was still going on the radio and had a working TV till the vertical collapsed on the previous owner...Cabinet was in lousy shape so I changed just enough caps and parts for it to work and sold it (thus the 0.3 recap count).

Another option if you know a cabinet maker is to have a custom cabinet made for it in whatever furniture style you fancy....Heck if you reverse the yoke leads you could have a mirror in lid set with a faux pre-WWII looking cabinet.

If it has enough sentimental value to restore, but no cabinet the only limits to the cosmetics are your imagination, resources, and styling sensibilities.

Yamamaya42 12-08-2019 10:43 AM

So I guess it was normal for a TV then to have a 12 inch CRT behind a window that was 7.5 inch by 10 :o

MadMan 12-08-2019 02:29 PM

That was before the mandate that screen size be viewable area as opposed to the physical dimensions of the picture tube. The round tube also cuts off the sides of the picture anyway, so the window was likely designed with that in mind, so you wouldn't be able to see the picture curving off the edge of the crt face.

As for an enclosure, I was thinking about this for one of my sets... how about making a simple plexiglass box for it, mount the Fada face plate on that, then it'll be like a cool display unit, where you can see the tubes and everything inside.

commodore 12-08-2019 04:34 PM

MadMan-. You stole the words out of my mouth. A wood based and plexiglass sided cabinet would be rather easy, for most anyone, to construct. It would make a fine little show piece. There's a lot of orphaned chassis out there, it's a shame to hide them away forever. Quite a few of us see the beauty, or are just amazed by viewing, these antique electrical Marvel's :)

Phil Nelson 12-08-2019 09:47 PM

This guy built a Plexiglas cabinet for his Pilot TV-37 tabletop set:

http://www.electronixandmore.com/res...lot/index.html

Regards,

Phil Nelson
Phil's Old Radios
https://antiqueradio.org/index.html

Yamamaya42 12-09-2019 10:02 AM

No matter what, this won't be easy, it's been sitting since the 70s gathering dust, the neglect, and broken coil, working out how to debug it w/o a enclosure.

The SAMS says the tube is a 12LP4, though I can't see any numbers on the tube, but it IS an rca, the schematic for the RCA 630 shows a EM ion trap, the one for the FADA 895 does not.

I don't know if the SAMS is wrong, sams photofact "74-3" and it DOES have a EM ion trap, or it has a pm one and I did not see it, (did not look very close ), or it's lost over the years.
If lost, that is yet another thing I'd have to find for it :(

Kevin Kuehn 12-09-2019 10:30 AM

According to Riders your 895 combo chassis originally used a 12LP4 and a PM Ion trap. Your model number picture shows the CRT socket wires have been snipped off, as if someone needed a socket in a hurry. :scratch2:

Yamamaya42 12-09-2019 10:43 AM

Quote:

Originally Posted by Kevin Kuehn (Post 3218591)
According to Riders your 895 combo chassis originally used a 12LP4 and a PM Ion trap. Your model number picture shows the CRT socket wires have been snipped off, as if someone needed a socket in a hurry. :scratch2:

I have the socket, or at least what's left of it, it is damaged with cracked edges and frayed wire edges, I cut it with the intent to try to repair/replace it, the wires to it are no longer viable and were almost broken off, I wanted to keep what wire went to what pin, before any broke off, It is being kept in a safe place.

Electronic M 12-09-2019 10:44 AM

Quote:

Originally Posted by Yamamaya42 (Post 3218593)
I have the socket, or at least what's left of it, it is damaged with cracked edges and frayed wire edges, I cut it with the intent to try to repair/replace it, the wires to it are no longer viable and were almost broken off, I wanted to keep what wire went to what pin, before any broke off, It is being kept in a safe place.



If you need a CRT socket I can send you one for postage and whatever it's worth to you...I have plenty of spares for that generation of socket.

Kevin Kuehn 12-09-2019 11:16 AM

There's surely no need for a cabinet to do the chassis restoration work, considering you need the chassis out on the bench. What would be handy is a 5AP4 or 8AP4 test CRT. The CRT would have originally been installed through the front of the cabinet, like on an RCA 630.

Electronic M 12-09-2019 12:15 PM

Quote:

Originally Posted by Kevin Kuehn (Post 3218598)
There's surely no need for a cabinet to do the chassis restoration work, considering you need the chassis out on the bench. What would be handy is a 5AP4 or 8AP4 test CRT. The CRT would have originally been installed through the front of the cabinet, like on an RCA 630.

Yup, a cabinet is needed for only 3 things: making it look presentable in a main room of a nicely furnished home, keeping children as well as adults of comparable IQ to children from touching live terminals while the set is running/holding charge from it's last run, and to facilitate stacking stuff (like other TVs :D ) on top of it.

If you wanted you could set the bare chassis on top of a spare fridge in a garage or basement where looks don't matter and it's high enough that kids can't reach it, and as long as no one tries to stack bags of chips on it (honey why do I smell plastic, potatoes and grease burning? :D ) it could be the fridge TV.

Yamamaya42 12-09-2019 12:59 PM

Quote:

Originally Posted by Electronic M (Post 3218594)
If you need a CRT socket I can send you one for postage and whatever it's worth to you...I have plenty of spares for that generation of socket.

I will most likely take you up on that later when the time comes.

https://imgur.com/fE1UWZA

My children...

I will have to search my shed one cool day to see if the Ion trap ( and knobs ) are around someplace. I hope they are.

I got so much stuff, not sure what all is in there, I got like 2 dynakit mark ii s , a sansui 1000. several barco data projectors .

Kevin Kuehn 12-09-2019 01:14 PM

Quote:

Originally Posted by Yamamaya42 (Post 3218601)
My children...

Awe, they're so cute and furry. We lost our Siamese Hairy to kidney failure about a year ago. Kind of miss him peaking out from under the Christmas tree this year.

Electronic M 12-09-2019 03:52 PM

Quote:

Originally Posted by Yamamaya42 (Post 3218601)
I will most likely take you up on that later when the time comes.

https://imgur.com/fE1UWZA

My children...

I will have to search my shed one cool day to see if the Ion trap ( and knobs ) are around someplace. I hope they are.

I got so much stuff, not sure what all is in there, I got like 2 dynakit mark ii s , a sansui 1000. several barco data projectors .

If you can't find the ion trap there is a fair chance I have a spare for that too...back in fall I scored a handful of 10" and 12" round CRTs and IIRC they all had traps on them.

Cute cats. We used to feed a stray called Charlie that looked just like the big one. Our calico hated him and all other cats passionately.

MadMan 12-09-2019 09:22 PM

I just so happen to have Sam's #74 set. It says 10BP4 everywhere until you look at the tube list, where it says 10BP4 in models TV-30, 799, 899 and 12LP4 in 930 and 940. Note that 895 is not listed. Sam's website calls for 74-3 anyway. I can't imagine it's much different though. I'd imagine the 895 is the combo unit version, which the model label on yours agrees with. Likely it either has provision for audio input, or lacks the final audio stage because it would be in the radio chassis.

You already mentioned that it might've been in a custom enclosure in a bar, right? Maybe someone got a little crazy and changed the crt to the bigger option (which would make sense for public viewing). Or, hey, maybe the crt took a dump at some point and they replaced it with a bigger one. Either way, that front cover might actually be for the 10" version, maybe that's why it seems so small. Cuz 895 is much closer to 899 than 930/40.

idk

Yamamaya42 12-17-2019 10:20 AM

Ion control...
https://imgur.com/r3Yt9S5

is this the sort of thing I'm looking for?

Funny, every time I see “Ion trap” I tend to think about the big Ion Cannon from empire strikes back. :p

Electronic M 12-17-2019 11:02 AM

Quote:

Originally Posted by Yamamaya42 (Post 3218976)
Ion control...
https://imgur.com/r3Yt9S5

is this the sort of thing I'm looking for?

Funny, every time I see “Ion trap” I tend to think about the big Ion Cannon from empire strikes back. :p

Yes.

MadMan 12-17-2019 10:14 PM

'Ion trap' is sort of a misnomer anyway, isn't it? As I understood it, the ions and electrons are shot off at an angle, and the ion trap magnet straightens out the electron beam only and not the ions.

Electronic M 12-18-2019 08:59 AM

Quote:

Originally Posted by MadMan (Post 3218999)
'Ion trap' is sort of a misnomer anyway, isn't it? As I understood it, the ions and electrons are shot off at an angle, and the ion trap magnet straightens out the electron beam only and not the ions.

The early ion traps had 1 magnet to help steer everything towards the neck wall and a second magnet to steer just the electrons back through the end of the gun...as time went on someone figured out it was cheaper and just as effective to drop a magnet and only use one to straighten the electron beam.

On another starwars note, when I was a kid in the 90s after killing (at 2-4 years old because I wanted to know why sound came on instantly but picture took time) the 70s Quasar WID color some of my first memories are of watching, and trying for years to convince my folks to let me take it apart at something like age 10 I dismantled it and later smashed the CRT (my friends and I wanted to watch ourselves on TV) and ended up keeping the electron gun because it resmebled a light saber... I still have it all these years later.

vortalexfan 12-18-2019 10:16 AM

Quote:

Originally Posted by Electronic M (Post 3219004)
On another starwars note, when I was a kid in the 90s after killing (at 2-4 years old because I wanted to know why sound came on instantly but picture took time) the 70s Quasar WID color some of my first memories are of watching, and trying for years to convince my folks to let me take it apart at something like age 10 I dismantled it and later smashed the CRT (my friends and I wanted to watch ourselves on TV) and ended up keeping the electron gun because it resmebled a light saber... I still have it all these years later.

Sounds like something I would of done at that age! :yes::thmbsp:

vortalexfan 12-18-2019 10:19 AM

Quote:

Originally Posted by Yamamaya42 (Post 3218976)
Ion control...
https://imgur.com/r3Yt9S5

is this the sort of thing I'm looking for?

Funny, every time I see “Ion trap” I tend to think about the big Ion Cannon from empire strikes back. :p

I actually have the last release of the original unaltered version of the original Star Wars Trilogy on VHS, it was the final release of the original unaltered version from 1995 just 2 years before they released the first altered version in 1997.
And Yes Luke shot first in the Canteen! :thmbsp::yes:

Yamamaya42 12-18-2019 11:02 AM

Quote:

Originally Posted by vortalexfan (Post 3219007)
I actually have the last release of the original unaltered version of the original Star Wars Trilogy on VHS, it was the final release of the original unaltered version from 1995 just 2 years before they released the first altered version in 1997.
And Yes Luke shot first in the Canteen! :thmbsp::yes:



Don't you mean Han Solo? :D

We used to pretend that fluorescent tubes were light sabers...


Now that I found a trap (not the original :( ) , and as mentioned, once I pull out and finish the CTC-90, it will be time to play with this monster, and first off, trying to work out how to safely (temp?) mount the CRT for the testing.

Electronic M 12-18-2019 12:32 PM

Quote:

Originally Posted by Yamamaya42 (Post 3219011)
Don't you mean Han Solo? :D

We used to pretend that fluorescent tubes were light sabers...


Now that I found a trap (not the original :( ) , and as mentioned, once I pull out and finish the CTC-90, it will be time to play with this monster, and first off, trying to work out how to safely (temp?) mount the CRT for the testing.

The 630 had the front of the CRT simply resting on a cutout in the front of the cabinet that it was installed through, and the neck supported by the yoke. A piece of styrofoam tall enough to keep the neck from being crooked in the yoke should be fine. For servicing the set on its side while opperating a IIRC 5XP4 test CRT is recommended...I don't gots one so I use an 8AXP4 or once in a while just use the 10BP4 it came with.... DuMonts and their licensees are nicer on the bench because they tended to integrate the face mount into the chassis.

Yamamaya42 12-18-2019 02:13 PM

Quote:

Originally Posted by Electronic M (Post 3219019)
The 630 had the front of the CRT simply resting on a cutout in the front of the cabinet that it was installed through, and the neck supported by the yoke. A piece of styrofoam tall enough to keep the neck from being crooked in the yoke should be fine. For servicing the set on its side while opperating a IIRC 5XP4 test CRT is recommended...I don't gots one so I use an 8AXP4 or once in a while just use the 10BP4 it came with.... DuMonts and their licensees are nicer on the bench because they tended to integrate the face mount into the chassis.

Anything useful will be a bit hard to find, ( plug-in compatible ) that's not way overpriced :(

the closest thing I can find, so far is a 8KP4 at the ETF, same general wiring and biasing, & it won't roll off the table, :D
the only major dif, is electrostatic vs magnetic focus, & that most likely wont matter for repair.

Yamamaya42 12-19-2019 06:38 PM

https://imgur.com/NqVsScT

Ready Ion control...

Yes that is silicon on the pin-cap. :(

it was damaged over the years with all the moving, but still checks out very strong.

Yamamaya42 12-29-2019 01:50 PM

I found it!! i found it! i found everything!!! :banana:

I had little hope that all the hardware was still there from the TV over the years and all the moves, that I went so far as to go a get an ion trap that I saw on e-bay.
but today when i was looking in my shed .

https://imgur.com/pKlbRDW

I got very lucky.

al the hardware is still there!!


;)

MadMan 12-29-2019 01:59 PM

Sweet!

Yamamaya42 12-30-2019 10:02 AM

When I do ever get this working, is to try and build a larger size cabinet for it, out of wood mostly, birch plywood, finished to match the CRT surround I have.

The electronics / CRT chamber on top, will have an clear plexyglass top, so the guts can be seen from above when running, below it will be the speaker chamber, for the 8 inch Jensen that was with it, which still seems to be good. :)

I don't know how tall it will be when all is said and done, will have to work that out later.
I WILL BE putting cooling fans in it though!

Yamamaya42 01-23-2020 06:38 PM

test CRT came today, a used 8YP4 ( from ETF)

https://imgur.com/5rxArRx
https://imgur.com/BjSCvw5
https://imgur.com/dBZlbdD

cute little thing!
:D

minor scratches and screen burn, worth it, over all.

NOW I got to come up with some sort of socket to hook up to it.
the socket to my 12lp4 is damaged, ad i was going to replace it anyway, I see out there that they had adapters to hook this sort of thing up to it, I could wire up a socket for the 8YP4 temp, but I am not sure what to get to start with.

what do I look for that will plug on to this thing?

Yamamaya42 01-23-2020 09:40 PM

i know what it should look like.
bk-precision_cr-11

https://elektrotanya.com/PREVIEWS/38...r_sm.pdf_1.png

i should be able to get that socket someplace ...

edit,
ALMOST, but not quite.
the pins don't match up :(
https://www.ebay.com/itm/Vintage-7-p...-/123774257767


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