HG>My entire ham radio station is powered from a 12V battery with backup
HG>from a 20A constant voltage power supply. The 20A rating is there to
HG>handle the peak currents, when running the transceiver at full power.

HG>In this way, I don't have to buy separate mains power supplies to every
HG>set, and emergency power is constantly available.

MFJ sells a nice device for running a 100 watt transmitter of the
cigarette lighter outlet in a vehicle.
It uses 4 Farad capacitors for storage and has the charging input
current limited to less then 15 Amps.

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 þ SLMR 2.1a þ Typo Tom strikes agaoin