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  #1  
Old 02-14-2016, 09:37 AM
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zeno zeno is offline
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Almost all if not all early sets that ran on 12 VDC used
a power transformer. Latter sets sometimes used a multivibrator
& higher voltages to run the set. RCA comes to mind. Its
all about economics.

73 Zeno
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Old 02-14-2016, 11:11 AM
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rca2000 rca2000 is offline
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And I have seen ONE GE "XB"hot chassis set--from the mid-70's or so that used a switcher to step UP the 12 volt input for the chassis. It had to be mid-70's or so.
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Old 02-14-2016, 11:17 AM
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rca2000 rca2000 is offline
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Quote:
Originally Posted by zeno View Post
Almost all if not all early sets that ran on 12 VDC used
a power transformer. Latter sets sometimes used a multivibrator
& higher voltages to run the set. RCA comes to mind. Its
all about economics.

73 Zeno
And Zenith continued to use cold chassis for their BW 13" sets till 1978..12KB1 chassis. Also in that period their lager BW sets----with the 19GB1 chassis--it used a VRT for power even. As did the "flat chassis BW 19FB12 chassis that came before it , a couple of us here have.
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Old 02-14-2016, 04:55 PM
Captainclock Captainclock is offline
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Well Anyways I'm surprised no one on here had mentioned anything about this one being a good save, because I know that the Montgomery Wards TV I saved and posted about on here everyone was talking about and saying how much of a good save that one was but when I save this old Sony regardless of whether or not it was from the '60s or the '70s should of been considered just as good of a save because its a lot earlier than the Montgomery Wards set I saved earlier.
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Old 02-15-2016, 10:25 AM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by Captainclock View Post
Well Anyways I'm surprised no one on here had mentioned anything about this one being a good save, because I know that the Montgomery Wards TV I saved and posted about on here everyone was talking about and saying how much of a good save that one was but when I save this old Sony regardless of whether or not it was from the '60s or the '70s should of been considered just as good of a save because its a lot earlier than the Montgomery Wards set I saved earlier.
Fourteen responses about this set, shows there is a certain degree of interest, as in many entrees on this forum.
Yes, it was a good save!
Ask the person that has control of the disposition of electronic salvage, to let you see the items, before they cut the cords off or do other damage. The worst, they could say is "NO".
BTW, My main interest is small screen color sets, like your Wards set. As stated before, I do have several small screen B/W sets, including "jelly bean sets" but they were mostly "Freebees".
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Old 02-15-2016, 10:48 AM
Captainclock Captainclock is offline
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Quote:
Originally Posted by dieseljeep View Post
Fourteen responses about this set, shows there is a certain degree of interest, as in many entrees on this forum.
Yes, it was a good save!
Ask the person that has control of the disposition of electronic salvage, to let you see the items, before they cut the cords off or do other damage. The worst, they could say is "NO".
BTW, My main interest is small screen color sets, like your Wards set. As stated before, I do have several small screen B/W sets, including "jelly bean sets" but they were mostly "Freebees".
OK, that's cool. So how long does it take exactly to "wake up" a picture tube that's been asleep for a long time? Just wondering because I've been trying to use that Montgomery Wards TV fairly often recently and it seems that its still a little dim yet and hasn't completely woken up yet.
What's interesting is that they did put a couple of small portable TVs on the floor, one of them a Realistic 5" portable color TV with Video inputs and outputs on it and an external antenna connection from 1989, and the other one a Hitachi 5" B & W portable from the early 1980s with external antenna connections as well (both had their original rod antennas intact yet). Anyways It seems if the TV is a small enough portable TV they will put it out on the floor. They also had a late 1980s Sony Watchman in their donation bin one day that was still in really good shape yet that was I think scrapped out.

Last edited by Captainclock; 02-15-2016 at 10:54 AM.
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  #7  
Old 02-15-2016, 11:31 AM
dieseljeep dieseljeep is offline
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Quote:
Originally Posted by Captainclock View Post
OK, that's cool. So how long does it take exactly to "wake up" a picture tube that's been asleep for a long time? Just wondering because I've been trying to use that Montgomery Wards TV fairly often recently and it seems that its still a little dim yet and hasn't completely woken up yet.
What's interesting is that they did put a couple of small portable TVs on the floor, one of them a Realistic 5" portable color TV with Video inputs and outputs on it and an external antenna connection from 1989, and the other one a Hitachi 5" B & W portable from the early 1980s with external antenna connections as well (both had their original rod antennas intact yet). Anyways It seems if the TV is a small enough portable TV they will put it out on the floor. They also had a late 1980s Sony Watchman in their donation bin one day that was still in really good shape yet that was I think scrapped out.
I'm pretty sure is has a "Screen control", that needs adjustment. I should be on the flyback along with the focus control.
BTW, you should buy the Realistic 5" set if it's reasonable enough. One thing nice about them is they're not that large and you can use it for a monitor for VCR repair.
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  #8  
Old 02-15-2016, 11:44 AM
Captainclock Captainclock is offline
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Quote:
Originally Posted by dieseljeep View Post
I'm pretty sure is has a "Screen control", that needs adjustment. I should be on the flyback along with the focus control.
BTW, you should buy the Realistic 5" set if it's reasonable enough. One thing nice about them is they're not that large and you can use it for a monitor for VCR repair.
OK, I'll see about getting that Realistic monitor. I think its still there.
I'll check the Screen control Adjustment. The Sony Has the same issue I noticed, so I guess I'll check the screen control on it as well.
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