TopBand: Remote Beverage Switching

[William H. Launer]

Larry va3lk / wa3zia wrote:

>This is not without a penalty however.  The relay will be MUCH MUCH slower
>in release time with the diode across the coil terminals.

Larry is right, the resulting dropout delay could be a problem where
fast switching is necessary (keying relay, etc), but not a problem in
most applications.  There are schemes to shorten the delay, such as
using a Zener in series with the suppression diode.  I don't have the
data at my fingertips, but might be able to find it if anyone is
interested.

73, Bill wb0cld



Bill Launer
St. Charles, MO
launerb@crl.com
wb0cld@wb0cld.ampr.org [44.46.66.25]
qrp-l #279      qrp arci #3551
Grid Square EM48RT



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