[AMPS] sb220 update

[T. A. Russell]

The three resistors on the high voltage side of the plate voltage divider
tend to drift up in value, resulting in lower voltage readings.  These 
resistors were not designed for high voltage application.

de Tom - N4KG

--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Sponsored by:             Akorn Access, Inc. & N4VJ / K4AAA