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Old 08-03-2022, 09:37 AM
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timmy timmy is online now
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Join Date: Jan 2011
Location: Delaware ny
Posts: 3,697
Motorola ts907 low hv

I’m trying to figure out what’s going on with this Motorola I’m obviously missing something here bright up 14kv bright down 20 kv with little to no difference by turning the hv pot. B+ is 375 and sams says 385 I tried cap off reg tube no difference all caps at the oscillator changed and no smell of leaking hv. I have a new flyback but don’t want to change it until I go over everything that I may be missing. Another oscillator tube nothing makes a difference. If anyone has even a clue I’m all ears. I don’t have a scope which would probably help I also checked the ohms of the horizontal hold coil which sets the frequency and the hold and ohms are good.

Last edited by timmy; 08-03-2022 at 11:30 AM.
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