[Test-Equipment] REF: GDO / Grid Dip Osc. Book(s)?

[J M Noeding]

I read that "Ed Tanton" wrote on Friday, December 20, 2002 6:27 PM:

=20
> I am looking for any GDO books you guys might know about-besides the =
Rider=20
> Publication div of Hayden Publishing Co. N.Y. book "How to use =
Grid-Dip=20
> Oscillators" by Rufus P. Turner. I would be interested in a good=20
> condition1st Printing of even this one. (A 3rd Printing cover may be =
seen=20
> at ebay # 1945652374.) I would also be interested in just knowing =
about any=20
> others.
>=20
> Thanks... and Season's Greetings!
>=20
>=20
> 73 Ed Tanton N4XY <n4xy@earthlink.net>

Have a weak memory of a book, believe it was 101 ways to use a GDM ,=20
such titled books were so popular over there in the 50's, but today you =
don't=20
use the GDM for all the same things as in 1928 or in the 50's. You just =
check=20
that a suspect circuit is near the frequency it was intended to be.

Found some notes in LF experimenters source book for GDM on low =
frequencies,
but I am not so sure about using squarewave, but a HP651B seems to be a =
good
choice. See Beyond the dipper by   W7ZOI in Radio-Amater (YU) 87/05 =
pg.131-133
or QST may 86 pp.14-20

73, Jan_Martin, LA8AK=20


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