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#1
08-18-2017, 10:21 AM
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That would be a return to 24 kV. The 19VP22 was most commonly used with an ultor voltage of 25 kV. The 21-CT-55 and CTC-4 ran the 21AXP22 at 25 kV.
The CTC-5 attempted to run the 21AXP22 at atound 20 kV, which would have worked if they had been able to get 20 kV out of the CTC-5 flyback at adequate current. Motorola used an ultor voltage of 20 kV or so with the 21AXP22 in the 21CT2. It worked fine. The CTC-7 is specified at 23.5 kV; I think the CTC-9 is similar, both sets using the 21CYP22. I think the "New 24000 volt chassis" ad copy is just that: adman B.S. 
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#2
08-18-2017, 10:35 AM
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Sears in the 70s always listed their sets by how many volts of picture power they had, i.e. "20,000 volts of picture power!"
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#3
08-18-2017, 04:48 PM
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I kinda thought that back in the early days Sears'/Toshiba's reach exceeded their grasp-But I bought a 9" Sears color set offa Ebay About 10 yrs back that was/is as good as anybody else's. It has a plastic cabinet that kinda reminds you of a toadstool. Other than the cabinet having a yellowish tinge, , there's nothing wrong w/it.
__________________
Benevolent Despot
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#4
08-19-2017, 02:51 PM
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I was given one of those Sears/Toshiba sets a few years ago. Scrapped it out & got a bunch of terminal strips and a bunch of good tubes for my efforts.
__________________
Ham shack...AM side: Knight-Kit T-60, RME-45 Vintage SSB side: National 200 Modern SSB: Kenwood TS-180S MFJ tuner, 130' dipole
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