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Re: black gates in parallel

I think Jon Curl was talking about switch-on surge current for which he uses a resistor in series and a relay to short the resistor once the surge has passed, and the idling current which he measures as about 1 amp. I measure about half that for my amplifier (depending on which one we are discussing).

You and I were talking about ripple current. J.Curl seems to doubt that I can measure it at all - I can, no problem. I found that a small voltage spike appears across the series varistor in time with the capacitor current surge and this may account for the slight suppression of the peak in the ripple current.

So I think we have it under control. As for VA rating, I am familiar with the rating and understand it to mean current at stated voltage rather than simply power in watts. So you can't expect to get twice the current if you halve the voltage on the primary etc.

Kind Regards,
Robert Karl Stonjek

Only two days (for the new speaker)? The number of times I've predicted only two days when working on a new project only to find it stretches out and out. Unless it is just a standard design in which case a couple of days might do. Do you test your designs with something like an LMS?


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