Sorry to hijack this thread, but I built my high band QDX to run off off 12VDC but realize that my gel cells can carry an initial charge of as high as 13.93 VDC. After treading the admonitions, I am hesitant to? power up the QDX with these unless I use a 78L12 or similar. The only problem is that the regulators are inefficient and require 2,5VDC headroom to operate. Similarly, buck converters require 1 VDC of headroom.
How is this situation addressed?
TIA!
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William, k6whp
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"Cheer up, things could get worse. So I cheered up and things got worse."
k6whp