John is right.
Lets see..
1A Bridge, bulk input cap, 7810 regulator, output ripple cap...
Oh ya, some wire and perhaps a heat sink.
Looks like about $2.00 to $10.00 in parts depending on your source.
And I'd bet I have all of them in the scrounge bin.
Oh, ya, remember to mount so the antenna is protruding from the Shell if mounting in a Die Cast engine.