[ARC5] Vibrator power supply

[J. Forster]

Hi,

It's really hard to judge much about the vibrator condition when operating
in-circuit because of the responses of the inductors and capacitors.

Consider operating the vibrator with just a pair of resistive loads with
the design voltage and current applied. That will immediately tell you the
contact condition, bounce, etc.

YMMV,

-John


====================



> David:
>
> From your scope photos, it looks to me as though the contacts in your
> vibrator are more-
> than-a-little "distorted", worn, damaged, whatever you want to call them.
> In any case, they are
> no longer properly shaped. I'll bet if you examined the contacts under a
> glass you would find
> them with ridges where they should be smooth. There is really terrible
> "contact bounce"
> occurring.
>
> I have had SOME luck with very carefully removing the cover from a
> vibrator and VERY
> carefully "dressing" the contacts.
>
> I am wondering if you wouldn't be better off replacing the vibrator with
> either a new one (good
> luck on that!) or simply replacing the vibrator with a solid-state
> substitute built into the old
> vibrator-can?
>
> I know the last wouldn't SOUND the same, but I'll bet it would be much
> easier to filter.
>
> Ken W7EKB
> ______________________________________________________________
> ARC5 mailing list
> Home: http://mailman.qth.net/mailman/listinfo/arc5
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:ARC5 at mailman.qth.net
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>
>