[R-390] MOV's and snubbers

[Roy Morgan]

On Jan 24, 2014, at 2:32 PM, Jim Haynes <jhhaynes at earthlink.net> wrote:

> There is an application note at
> www.illinoiscapacitor.com/pdf/Papers/spark_suppression.pdf
> 
> I used 0.1 uF and 100 ohms

Jim,

Thanks for that link, good info to save.

The manual for the Hallicrafters HA-1  “T.O. Keyer” which uses a mercury wetted relay, has a graph to easily figure out a snubber network for the contacts.  That manual is on BAMA in .djvu  and .pdf form at:

http://bama.edebris.com/manuals/hallicra/ha1/

Roy

Roy Morgan
RoyMorgan at alum.mit.edu
K1LKY Since 1958