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1994-11-13
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Date: Sun, 2 Oct 94 04:30:24 PDT
From: Ham-Homebrew Mailing List and Newsgroup <ham-homebrew@ucsd.edu>
Errors-To: Ham-Homebrew-Errors@UCSD.Edu
Reply-To: Ham-Homebrew@UCSD.Edu
Precedence: List
Subject: Ham-Homebrew Digest V94 #292
To: Ham-Homebrew
Ham-Homebrew Digest Sun, 2 Oct 94 Volume 94 : Issue 292
Today's Topics:
300 Am Transmitter For Sa
Need Help: measuring coil resistance
Need NE561 PLL chips
Send Replies or notes for publication to: <Ham-Homebrew@UCSD.Edu>
Send subscription requests to: <Ham-Homebrew-REQUEST@UCSD.Edu>
Problems you can't solve otherwise to brian@ucsd.edu.
Archives of past issues of the Ham-Homebrew Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-homebrew".
We trust that readers are intelligent enough to realize that all text
herein consists of personal comments and does not represent the official
policies or positions of any party. Your mileage may vary. So there.
----------------------------------------------------------------------
Date: Fri, 30 Sep 94 08:53:00 -0500
From: joe.taylor@woodybbs.com (Joe Taylor)
Subject: 300 Am Transmitter For Sa
Hi Skeeter:
Tell me more about your Transmitter for Sale.
Very 73 Joe Taylor N4NAS
---
■ BgNet 1.0ß12 ≈ 049/000: Pipeline BBS - Glasgow, Ky - 502-651-2556
------------------------------
Date: Sat, 1 Oct 1994 06:25:34 GMT
From: wrt@eskimo.com (Bill Turner)
Subject: Need Help: measuring coil resistance
Quite often this phenomenon is nothing more than RF energy being
picked up and rectified in the input stage of your meter. The source
could be a nearby commercial AM broadcast transmitter or any
other source whose output varies.... lotsa possibilites.
73, Bill
------------------------------
Date: Fri, 30 Sep 1994 09:37:35 GMT
From: tgm@netcom.com (Thomas G. McWilliams)
Subject: Need NE561 PLL chips
mack@mails.imed.COM wrote:
: I believe that Phillips has discontinued the 561. However, the 564
: should be reasonably close in features unless that is the one that has
: all the neat AM synchronous detection stuff in it.
Yes, the 561 had all the neat synchronous AM detection stuff.
And it was discontinued almost 15 years ago (sigh). One way
of easily making a synchronous detector might be to have a 4046 pll
drive a 4066 analog switch.
Thomas KI4N
tgm@netcom.com
------------------------------
End of Ham-Homebrew Digest V94 #292
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