Path: utzoo!attcan!uunet!lll-winken!ames!pasteur!ucbvax!hplabs!hplabsz!dleigh
From: dleigh@hplabsz.HPL.HP.COM (Darren Leigh)
Newsgroups: sci.electronics
Subject: Re: Radar detection
Summary: gravity detection?
Message-ID: <2813@hplabsz.HPL.HP.COM>
Date: 18 Jan 89 19:30:31 GMT
References: <311@serene.UUCP>
Reply-To: dleigh@hplabsz.UUCP (Darren Leigh)
Organization: Hewlett-Packard Laboratories
Lines: 16

In article <311@serene.UUCP> gbell@pnet12.cts.com (Greg Bell) writes:

>   Has anyone ever heard of building a simple radar detector using just one
>op-amp?   Radio Electronics had an interesting circuit a while ago that was
>basically an op-amp with a capacitor connected across the inverting and
>non-inverting inputs of the amp.   Aparently, this arrangement allows
>detection of various RF energies...

Wasn't that for detecting "scalar gravity waves"?  They used that to
detect black holes and supernovae, etc.  I don't even think it was in
an April issue.

========
Darren Leigh
Internet:  dleigh@hplabs.hp.com
UUCP:      hplabs!dleigh