RST Engineering wrote:
We wrote up one in a Kitplanes article several years ago. We also (as I
vaguely remember) offered to sell the parts for our cost ($15 or so), kitted
up a dozen of them, but didn't get any takers. One of them is yours for a
SASE.

Jim

SPAM! Take it to r.a.marketplace, Jim. Trying to unload your useless
castoffs doesn't qualify as as "owner" assistance.