[AMRadio] Voltage regulator

[Barrie Smith]

Another couple of questions relative to relays this time.

Some of my antenna relays have protective diodes and some don't.  If a power 
supply were to be used only for switching relays, could the protective diode 
be placed at the output of the power supply, rather than at the relay?

Also, looking at a couple of Amphenol coax relays I have here, there is not 
only a protective diode, but a (very) small disc ceramic capacitor across 
the coil.

Further protection?

73, Barrie, W7ALW