How is the emitter at 24 volts? Do you have an open ground??
Matt Rossiter wrote:
> This should be a simple question. I'm fixing a monitor out of a boxing
> bugs which uses the WG 19K6100 series monitor. I got the deflection
> board working, but the HV is dead. My suspicion is that the BU409
> transistor blew (as did some other components). Right now the
> collector, base and emitter is reading 24 volts. Normally, only the
> collector should be getting that reading the others should be getting
> about 5-8 volts right?
>
> Anyway - the real question is, BU409 transistors are hard to come by and
>
> expensive. $5 a piece from Bob Roberts. However mouser sells the BU407
>
> transistors for super cheap and they've got plenty of them. I don't
> have the specs, but I believe these are compatible - is that true?
>
> Thanks!
>
> Matt
>
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