[R-390] in rush current limiters

Sun, 22 Dec 2002 23:40:18 -0500 (Eastern Standard Time)

On Sun, 22 Dec 2002, Jim Shorney wrote:

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> On Sun, 22 Dec 2002 20:38:24 -0500 (Eastern Standard Time), Helmut
> Usbeck wrote:
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>
> >Put a diode (1N4007 will do)  between pins 2 and 7.  No muss, no fuss, no
> >heat.  YOu now have 12 vac for the two 6 volt tubes to fight over.
>
>
> Oh, I get it now.  Half-wave rectify the filament voltage to accomplish
> a reduction in the average voltage.  Average value of a half-wave
> output is .318 of peak,  according to my reference.  Doing the math, 25
> VAC RMS into the rectifier would give 11.21 volts.  Close enough.
>
> What about rectifier hash?

Don't hear any.  Is that good?
-Helm.
>
>
>
> - --
> Jim Shorney      -->.<--Put complaints in this box
> [email protected]
> [email protected]
> Ham Radio NU0C
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