[ARC5] Vibrator power supply

[Bill Cromwell]

Hi,

I know that some people are stuck on keeping everything original. That
is a personal preference. I would have had transistors in that power
supply a long time ago. If you have to go that route to get it working
and you want to hear the vibrator racket get something like a miniature
bicycle wheel, spool it up, and put a baseball card through the spokes
(evil grin).

I thought I had a vibrator (condition and part number unknown) but I
can't find it. I really did try to help.

73,

Bill  KU8H


On Wed, 2012-12-12 at 17:27 +0000, Kenneth G. Gordon wrote:
> 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