Did you notice that four pin connector layout was designed to be impossible to accidentally reverse the polarity? It plugs in either way with the correct connections. It's a little subtlety that I overlooked for probably thirty years...
73
-Jim
NU0C
On Sun, 31 Dec 2023 16:32:18 -0800
"jerry-KF6VB" <jerry@...> wrote:
There's a four-pin connector for power on that board. Only two of the
pins
are used. But power and ground are also brought to the other - unused -
pins.
I got a new connector, and wired up all four pins. More secure.
--
73
-Jim
NU0C
Jim Shorney