[Johnson] Soft-start mods

[Brian Carling]

It's easy - you just put one of these little pancake gadgets in series
with the primary and that nasty THUNK! is gone.

Someone gave me about half a dozen of these things.
I am not sure what they are nut they measure about 4 ohms cold.

They are black and marked as:
STM
CL-30

Where do y'all get these wonderful gadgets and what are they 
called?

73 de AF4K, Bry

On 6 Dec 2005 at 11:03, John Lawson wrote:

> 
> 
>    Anyone ever put in a 'soft start' or 'inrush limiter' in one of the 
> larger Johnson rigs?  Just curious.
> 
>    My friend has a 500 - it "bangs" pretty good when keyed, and my Valiant 
> tries to jump off the table once in a while. (Good thing it weighs so 
> much!).  Both of us are using solid-state rectifiers in the HV side.
> 
>    I know of many commercial inrush snubbers - just to cut down on that 
> 'switch closed near peak in cycle' stress - hmmmm - maybe even a 
> 'zero-crossing' switch in the HV primary circuit....
> 
> 
>   Cheers
> 
> John   KB6SCO
> 
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