[Boatanchors] RAK Receiver Power Supply.

[David Stinson]

The stock power supply for the RAK receiver
supplies both 180V B+ and sorta-regulated 90V for
the oscillator.  However, there is a voltage
divider built into the RAK that provides the 90V
from a single 180V supply.  If one regulates it-
which is easily done with a FET these days, 180V
is all you need.  Mine is playing just peachy with
only 180V.
73 Dave S.