until it was put away for another day.
Ken’s second complaint is one that
probably most metal locator owners,
who go looking for coins or treasure,
have. The GD-48 has a poor ROI.
For those of you who don’t know the
phrase ROI, it is a business term that
stands for
Return on Investment
! Ken’s
ROI was nominal. Maybe if aluminum
recycling was in affect in the seventies,
he might have been able to return all
the can tabs he found. But alas, Ken
never mentioned gold coins nor pieces-
of-eight he located under the search
head during his explorations.
I personally know of one dime he did
find. I hid it under the carpet when we
were checking his GD-48 out one after-
noon.
When I asked Ken what happened to
his metal locator, he said the swivel
broke between the sense-head and the
arm and he finally abandoned it. How-
ever he said it gave him good service for
many years.
Acknowledgements:
I’d like to thank Ken - W6HHC for sav-
ing and passing along his GD-48 man-
ual after his unit broke beyond repair.
He also provided the GD-348 manual
that he acquired from a friend.
73,
from
AF6C
Heathkit of the Month #52 - GD-48 Metal Locator
HOM rev.new
Page 6 of 7
Copyright 2014, R. Eckweiler & OCARC, Inc.
Figure 4: GD-1290 “GroundTrack”. The GD-1190 “CoinTrack” is
similar in size and appearance. (From 1984 Catalog)
Remember, if you are getting rid of
any old Heathkit Manuals or Catalogs,
please pass them along to me for my
research.
This article originally appeared in the
February 2014 issue of RF, the news-
letter of the Orange County Amateur
Radio Club - W6ZE.
