[GreenKeys] Why this stuff matters

[Jeffrey Angus]

On 9/11/19 1:00 PM, Chris Elmquist wrote:
> On Wednesday (09/11/2019 at 04:15AM -0500), Jeffrey Angus wrote:
>> The same reason a snubber is needed to deal with the resultant
>> voltage spike as the magnet field in the coil collapses when the
>> current is switched off.
> And so where are the snubbers?  Are they typically across the coil in these
> machines already or do they need to go across any contact or keying element
> (ie, solid-state switch) that could make or break the loop?
They are across each and any set of contacts that open the loop.
That includes the keyboard contacts, any relay contacts and the
break key if any.
> Thanks for the analysis from here too.  It's fun to study.
Glad you're enjoying it.

-- 
"I am a river to my people."
Jeff-1.0
WA6FWI
www.foxsmercantile.com