Date: Sat, 12 Feb 94 04:30:17 PST
From: Ham-Equip Mailing List and Newsgroup <ham-equip@ucsd.edu>
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Subject: Ham-Equip Digest V94 #29
To: Ham-Equip
Ham-Equip Digest Sat, 12 Feb 94 Volume 94 : Issue 29
Today's Topics:
1974 Fox Tango Newsletters needed (Yaesu)
Cushcraft R7 antenna to trade...
Drake R-4 Crystal Substitute
Kenwood TR-7800 memory backup?
Looking for LOGIKEY keyer
TS140S + ARRL Powersupply...
What's a Motorola MC80 ?
Yaesu 990 For Sale
Send Replies or notes for publication to: <Ham-Equip@UCSD.Edu>
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Archives of past issues of the Ham-Equip Digest are available
(by FTP only) from UCSD.Edu in directory "mailarchives/ham-equip".
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: 8 Feb 94 13:53:05
From: nntp.ucsb.edu!library.ucla.edu!agate!msuinfo!netnews.upenn.edu!mipg.upenn.edu!yee@network.ucsd.edu
Subject: 1974 Fox Tango Newsletters needed (Yaesu)
To: ham-equip@ucsd.edu
I have ordered (as part of a group purchase) the Yaesu FoxTango
newsletters from IRC. Unfortunately, the 1974 newsletters are no
longer available. I would like to obtain copies of the 1974
newsletters. Does anyone have them? I would be more than happy to
pay for copying charges.
--
Medical Image Processing Group | Conway Yee, N2JWQ
411 Blockley Hall | EMAIL : yee@mipg.upenn.edu
418 Service Drive | VOICE : 1 (215) 662-6780
Philadelphia, PA 19104-6021 (USA) | FAX : 1 (215) 898-9145
------------------------------
Date: 10 Feb 1994 16:36:16 GMT
From: src.dec.com!src.dec.com!estrella@decwrl.dec.com
Subject: Cushcraft R7 antenna to trade...
To: ham-equip@ucsd.edu
*********************************************************
Posting for my brother who doesn't have an account...
I have a cushcraft R7 vertical antenna I want to trade for
a good working HF solid state transceiver; I can make up
some cash with the antenna if necesary.
I can be reached at ( 408 ) 279-6028 evenings and weekends.
Luis Estrella
KD6VTZ TRADE ONLY
**********************************************************
Or you can send me e-mail and I will give Luis your message.
John Estrella
------------------------------
Date: Fri, 11 Feb 1994 17:52:03 GMT
From: yale.edu!noc.near.net!news.cs.brandeis.edu!omara@yale.arpa
Subject: Drake R-4 Crystal Substitute
To: ham-equip@ucsd.edu
I've recently gotten an R-4B and am quite pleased with its performance
I'd like to extend coverage, however, and don't want to go broke on
crystals. I'm planing to build a substitution box which would be
essentially a coarse frequency synthesizer. Since the range is broad,
I'm planning to start at 50-80 Mhz and heterodyne down to the
necessary frequencies for the preinjection mixing. I'm interested in
any references as to the injection level for the crystal port. Since
it's coupled to the grid of the HS6 premixer I'd guess that necessary
drive levels would be low. Any hints or references on the subject
would be welcome. Thanks.
Daniel M. O'Mara
Rosenstiel Center 6th Floor
Brandeis University
Waltham, MA
omara@sad.rose.brandeis.edu
------------------------------
Date: Tue, 8 Feb 1994 12:16:54 GMT
From: agate!howland.reston.ans.net!pipex!sunic!EU.net!news.funet.fi!aton.abo.fi!usenet@network.ucsd.edu
Subject: Kenwood TR-7800 memory backup?
To: ham-equip@ucsd.edu
I have recently brought an old Kenwood TR-7800
2m FM-rig. I use it mainly for mobile, and have
+12V DC connected from the car battery. I think
this +12V is used for memory backup as well.
Sometimes rig needs to be disconnected, though, as
I would rather not leave the rig in a parked car
overnight. There are four NiCd cells for memory
backup, but current drain is so high batteries run
out in a matter of days.
NiCd's get charged when rig is connected to power
supply and turned on. But I do not need my rig every
day and would rather not have a big 12V/20A power supply
on just to have +12 on power conenctors to keep memory and
charge those NiCd's.
There is small 3-pole male connector in the back of the rig
labeled "backup". This is intented for a small power supply,
just a few mA to keep memory. Such power supply is no longer
available and I have no documentation about connectors. I
was thinking of a small supply, if I would only know what
voltage & polarity the pins are... Maybe the connector also
needs to be changed because I haven't found female connector.
(like microphones, have you ever seen same kind of connector
in two different rigs..).
Any advice will be appreciated. Please post or e-mail.
73 Mike OH1NZQ
------------------------------
Date: 10 Feb 1994 16:54:31 GMT
From: ucsnews!sol.ctr.columbia.edu!math.ohio-state.edu!news.acns.nwu.edu!casbah.acns.nwu.edu!rdewan@network.ucsd.edu
Subject: Looking for LOGIKEY keyer
To: ham-equip@ucsd.edu
In article <2jbts4$6jb@eldborg.rhi.hi.is>,
Hannes Hogni Vilhjalmsson <hhv@rhi.hi.is> wrote:
>Can anyone tell me the present address of the Logikey Company,
>or any other outlet for their LOGIKEY microprocessor based morse
>keyer?
It is manufactured and sold by
Idiom Press
Their address appears in their ad on page 128 of Feb 1994 QST.
Rajiv
aa9ch
r-dewan@nwu.edu
------------------------------
Date: 8 Feb 1994 13:10:32 GMT
From: agate!howland.reston.ans.net!pipex!uknet!EU.net!news.forth.gr!helios.intranet.gr!phaethon!demetre@network.ucsd.edu
Subject: TS140S + ARRL Powersupply...
To: ham-equip@ucsd.edu
CQ Netters...
A friend just constructed the powersupply described in the
ARRL Handbook page 27-3 in the 1994 book (the page changes
depending on the handbook publishing year)
A few modifications were made in order for the supply to be
25 Ampere able (by using a different power transistor
and a larger transformer).
The supply worked fine, it only dropped it's voltage by
0.1 volts at 25 A. and all seemed fine untill we noticed
something really strange...
While having a TS140S hooked on the power supply, and while
the radio itself was off, when the supply was turned off
the voltage would jump to full voltage (30V+) for a second
or two before the capacitors would discharge...
While trying to simulate the affect with a 25A load (several
automotive lamps) the supply did nothing out of the ordinary
and no such "spike" was detected!
Has anyone seen anything like the above mentioned effect ?
73's
------------------------------
Date: Wed, 9 Feb 1994 13:13:51 GMT
From: nntp.ucsb.edu!mustang.mst6.lanl.gov!nntp-server.caltech.edu!netline-fddi.jpl.nasa.gov!elroy.jpl.nasa.gov!swrinde!cs.utexas.edu!howland.reston.ans.net!EU.net!sun4nl!rivm!charlos@network.UCSD
Subject: What's a Motorola MC80 ?
To: ham-equip@ucsd.edu
A friend of mine has a MOTOROLA transceiver and he wonders what it exactly is,
and whether it can be modified for use on perhaps 430 Mhz.
The transceiver type is MC80 and the full typenumber seems to be:
M.:MAD24TSA900AK
Can anyone tell me what this unit is and what we can do with it ?
thanks,
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Charlos Potma [PA3CKR] (charlos@rivm.nl)
RIVM - National Institute of Public Health and Environmental Protection
Laboratory for Air Research
Postbox 1, 3720 BA BILTHOVEN, the Netherlands
tel. ++31 30 742362, fax. ++31 30 287531
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
WARNING: Shaking hands with a politician in an election year
may result in an unacceptable loss of fingers.
The Surgeon General
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
------------------------------
Date: Mon, 7 Feb 1994 19:45:55 GMT
From: microsoft!hexnut!frede@uunet.uu.net
Subject: Yaesu 990 For Sale
To: ham-equip@ucsd.edu
I have a slightly used, 5 month old Yaesu 990 HF rig. It
contains all manuals (including the optional service manual),
the original box, and original stock accessories.
I have performed the factory modification for general
coverage transmit (easily reversable). The radio is in new condition.
Reason for sale: I find I need the operating features of the
Yaesu 1000 rig, so I need to upgrade.
Price: $1600 including U.P.S. ground shipping.
Phone: 206-936-2520 (Office)
206-725-1207 (Home)
Fredric Einstein
frede@microsoft.com
------------------------------
Date: Fri, 11 Feb 1994 16:23:11 GMT
From: agate!netsys!direct!kg7bk@network.ucsd.edu
To: ham-equip@ucsd.edu
References <1994Feb10.230316.2343@ke4zv.atl.ga.us>, <CL1F5v.KID@srgenprp.sr.hp.com>, <2jg9ft$8ds@hp-col.col.hp.com>
Subject : Re: Vertical Antennas
Mike Stansberry (jms@col.hp.com) wrote:
: : (Is anybody else still following this convoluted discussion?)
: : AL N1AL
: Yes, but you're both over my head. I still read it, though.
: Mike, K0TER
Would everybody (anybody) trust ELNEC to settle this discussion?
73, Cecil, kg7bk@indirect.com
------------------------------
End of Ham-Equip Digest V94 #29
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