Zenith Model SLS2751Y Question

[BlueSpark]

A friend has a Zenith model SLS2751Y with a very "soft" CRT. I
thought I would try a rejuvenation before telling him his best bet
would be to replace the set. Two hurdles exist. First, my
rejuvenator is over 20 years old, and surely would not list the CRT
number, and likely not to have a compatible adapter. However, I'm
willing to take one of the very old adapters and just crimp some pin
connectors onto the wires to make a "universal" adapter. But, I'll
still need the pin-outs and filament voltage for the CRT to connect
everything correctly. The second hurdle is the fact that the set is
mounted high up on a wall, and I'd like to avoid having to take it
down temporarily just to be able to remove the back to get the CRT
number.

If someone has a schematic for this set, and could post the pin-outs
and filament voltage, I would be most grateful. If that's too much
trouble, just the CRT number would at least allow me to try to find
the other info elsewhere, and avoid having to remove and reinstall the
set from its wall mount more than once.

Thanks in advance,
BlueSpark

 

[Asimov]

"BlueSpark" bravely wrote to "All" (07 Oct 03 00:29:45)
--- on the heady topic of "Zenith Model SLS2751Y Question"

I've found a working solution for my older zenith soft crt was to bypass
the heater resistor. It did increase the voltage only a very little but
it seems to have been enough to bring illumination to a useful level.
It's been going for a year. Perhaps it will last a couple more years?
Apparently those old crts just went weak consistently.

Bl> From: BlueSpark <bluespark@electrode.com>

Bl> A friend has a Zenith model SLS2751Y with a very "soft" CRT. I
Bl> thought I would try a rejuvenation before telling him his best bet
Bl> would be to replace the set. Two hurdles exist. First, my
Bl> rejuvenator is over 20 years old, and surely would not list the CRT
Bl> number, and likely not to have a compatible adapter. However, I'm
Bl> willing to take one of the very old adapters and just crimp some pin
Bl> connectors onto the wires to make a "universal" adapter. But, I'll
Bl> still need the pin-outs and filament voltage for the CRT to connect
Bl> everything correctly. The second hurdle is the fact that the set is
Bl> mounted high up on a wall, and I'd like to avoid having to take it
Bl> down temporarily just to be able to remove the back to get the CRT
Bl> number.

Bl> If someone has a schematic for this set, and could post the pin-outs
Bl> and filament voltage, I would be most grateful. If that's too much
Bl> trouble, just the CRT number would at least allow me to try to find
Bl> the other info elsewhere, and avoid having to remove and reinstall the
Bl> set from its wall mount more than once.

Bl> Thanks in advance,
Bl> BlueSpark

.... No electrons were harmed in the posting of this message.

 

[BlueSpark]

I'll take that under advisement, but this tube is also very "gassy,"
that is, colors tend to saturate. My experience in the past (going
back many years) was that the "zapping" of the cathode done with a
rejuvinator often cleared this up.

So, I'd still appreciate it if someone could look up the CRT pinouts,
or just the CRT number, for me (Sams folder #3433). I'd be happy to
report back on whatever success I have.

TIA, BlueSpark


On Tuesday, 07 Oct 2003 12:04:30 -500, "Asimov"
<Asimov@-removethis-bbs.juxtaposition.dynip.com> wrote:

"BlueSpark" bravely wrote to "All" (07 Oct 03 00:29:45)
--- on the heady topic of "Zenith Model SLS2751Y Question"

I've found a working solution for my older zenith soft crt was to bypass
the heater resistor. It did increase the voltage only a very little but
it seems to have been enough to bring illumination to a useful level.
It's been going for a year. Perhaps it will last a couple more years?
Apparently those old crts just went weak consistently.

Bl> From: BlueSpark <bluespark@electrode.com

Bl> A friend has a Zenith model SLS2751Y with a very "soft" CRT. I
Bl> thought I would try a rejuvenation before telling him his best bet
Bl> would be to replace the set. Two hurdles exist. First, my
Bl> rejuvenator is over 20 years old, and surely would not list the CRT
Bl> number, and likely not to have a compatible adapter. However, I'm
Bl> willing to take one of the very old adapters and just crimp some pin
Bl> connectors onto the wires to make a "universal" adapter. But, I'll
Bl> still need the pin-outs and filament voltage for the CRT to connect
Bl> everything correctly. The second hurdle is the fact that the set is
Bl> mounted high up on a wall, and I'd like to avoid having to take it
Bl> down temporarily just to be able to remove the back to get the CRT
Bl> number.

Bl> If someone has a schematic for this set, and could post the pin-outs
Bl> and filament voltage, I would be most grateful. If that's too much
Bl> trouble, just the CRT number would at least allow me to try to find
Bl> the other info elsewhere, and avoid having to remove and reinstall the
Bl> set from its wall mount more than once.

Bl> Thanks in advance,
Bl> BlueSpark

... No electrons were harmed in the posting of this message.