Home Tweakers' Asylum

Tweaks for systems, rooms and Do It Yourself (DIY) help. FAQ.

15Khz

The HV supply in TV sets is driven off the horizontal output circuit .

Therefore the frequency that the HV supply is running at is around 15Khz (15,734.26 hz for color TV) equal to the horizontal scanning rate.

Quite a bit lower than 20Mhz.

Also TV's turn off the high voltage section when the set is powered off as this practice tended to shorten the life of the HV components.


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