[Johnson] Ranger function switch Sparks

[johnson@mailman.qth.net]

Hi:
Isn't there something in existance called a "zero" seeking relay (where you
won't have voltage applied to the load until the line voltage phase reaches a
"zero voltage" point along the line voltage  sine wave)?  I was thinking about
this. Cal. N6KYR

W4AWM@aol.com wrote:

> Hi,
>
> I am just starting to restore a Ranger I and haven't noticed any sparking.
> However, since this the main switch, there is a considerable inductive kick
> possible from the power transformer when the rig is powered up. This would
> depend on which cycle the line was in when you turned the switch and other
> factors.
>
> The very best way to take care of this if it bothers you enough to worry
> about the longivity of the switch is to use relays to handle the load.  I
> have just added this feature to a Brand X (Drake) L-4B and L-7 amp, both of
> which use a combination switch which is no longer manufactured and is near
> impossible to find sans buying a parts rig and hoping that the switch is
> still good.
>
> I have heard about fellows placing caps across the contacts, but it would
> appear to my limoted knowledge that there would be an extra kick from
> charging the cap, too.
>
> For my money, relays are cheap and plentiful and require no head scratching
> to install.
>
> 73,
>
> John,  W4AWM
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