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Old 07-26-2018, 04:38 PM
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timmy timmy is offline
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Join Date: Jan 2011
Location: ferndale ny
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Quote:
Originally Posted by dtryon View Post
I don't think I quite understand what your doing. Isn't the deflection on an old Sinclair TV magnetic and I believe the pilot used electrostatic. I would think the biggest problem would be the horiz and vert scanning not the heater voltage. How did you solve that problem?

Thanks,
Dennis
Yes the Sinclair crt is electrostatic not magnetic. The heater voltage was criticle because it was .55 volts that had to be right since I already burned one of these crts out. I used a small center tap 12 volt trans and fed 6 volts to the secondary and with resistors got the voltage down to what I needed from the primary, 1 volt under load gave me just under .50 volts.
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