A Confession

[Electronic M]

Originally Posted by Hagstar

Well the tripler is putting out 3 times the input voltage, 4 times would be near 30K. I would assume they are designed the same but the quadrupler would have 2-3 extra stages. As for design they are doing what they were designed to do as far as I can see- replace flybacks by turning horz. output voltage into high voltage- weren't they used this way originally at factory?

John H.

An AC-DC multiplier is defined by it's number of diodes. A doubler has 2 diodes, a tripler has 3, a quadrupler 4, a quintupler 5, and so on. Thus a quadrupler can ONLY have one more stage than a tripler.

30KV unregulated should be fine...Some sets can hit 40KV if you disconnect the CRT and HV reg.

As long as you are not drawing more than about 1mA through the regulator with the CRT dark and the HV set to roughly 25KV, all should be well.