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Typically the value of the electrolytic caps and the heat capacity of the 5v regulators is the limiting factor. I use 14.1 volts often without any problems.
On Aug 27, 2019, at 2:38 AM, Curt via Groups.Io <rhulett1@...
The radio worked when turned on, and no smoke escaped! Alignment was easy as described in the manual. The receiver is fantastic, and am getting 5W output with a 12VDC supply. One question is whether I can use the shack 13.8VDC supply without blowing up the finals? Also, what is minimum voltage? Will a 9VDC battery work, maybe 1W output?
No contacts yet but that will happen soon.
I think the little green box will become one of my favorites. When the weather cools a bit, from the patio with an EFHW n tuner ought to be fun.
Thanks Dave and 4state!