[Hallicrafters] HT-37 advice

Mark Bell bell at blazenet.net
Sat Oct 4 13:58:12 EDT 2003


Hi Riley --

I'd recommend replacing the capacitors.  Even if you're successfull in using
the variac in SLOWLY bringing the radio back to life,  you're going to need
to replace the caps anyway.     Yes, you may be successful in reforming
them,  but new caps are cheap, and the damage due to old caps shorting just
isn't worth the risk, in my opinion.

73 Mark K3ZX

----- Original Message -----
From: "Riley Hollingsworth" <rholling at adelphia.net>
To: <hallicrafters at mailman.qth.net>
Sent: Saturday, October 04, 2003 9:19 AM
Subject: [Hallicrafters] HT-37 advice


> I'm picking up an HT-37, still in the box new from 1962.  Any suggestions
on
> the caps---should I just go ahead and replace them, or should I be bold
and
> bring it up with a variac, assuming no visible detioriation ?  -----
> Original Message -----
> From: <hallicrafters-request at mailman.qth.net>
> To: <hallicrafters at mailman.qth.net>
> Sent: Saturday, October 04, 2003 4:05 AM
> Subject: Hallicrafters digest, Vol 4 #309 - 9 msgs
>
>
> > Send Hallicrafters mailing list submissions to
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> > than "Re: Contents of Hallicrafters digest..."
> >
> >
> > Today's Topics:
> >
> >    1. Need SX-71 xfmr (jh7hc at juno.com)
> >    2. Re: Advice sought on antenna cable type (rjones at theofficenet.com)
> >    3. International Harvester Mag. of Gatti's 12th Expidition To The
> Mountains fo The Moon. (SGSII at msn.com)
> >    4. Advice sought on antenna cable type (Kevin J Ward)
> >    5. Re: International Harvester Mag. of Gatti's 12th Expidition To The
> Mountains fo The Moon. (Duane Fischer, W8DBF)
> >    6. Re: Advice sought on antenna cable type (Barrie Smith)
> >    7. Re: Advice sought on antenna cable type (Ian Szekeres)
> >    8. Remember Saturday HCI 40 Meter Net (Duane Fischer, W8DBF)
> >    9. Re: Advice sought on antenna cable type (Glen Zook)
> >
> > --__--__--
> >
> > Message: 1
> > Date: Fri, 3 Oct 2003 17:35:17 GMT
> > To: hallicrafters at mailman.qth.net
> > From: jh7hc at juno.com
> > Subject: [Hallicrafters] Need SX-71 xfmr
> >
> >
> > Desperately need power xfmr for SX-71. Cash or have many tubes and parts
> to trade. Advise, Joe WS0E <heytubeguy>
> >
> > ________________________________________________________________
> > The best thing to hit the internet in years - Juno SpeedBand!
> > Surf the web up to FIVE TIMES FASTER!
> > Only $14.95/ month - visit www.juno.com to sign up today!
> >
> > --__--__--
> >
> > Message: 2
> > Date: Fri,  3 Oct 2003 14:42:42 -0700
> > From: rjones at theofficenet.com
> > To: Rodney Bunt <rodney_bunt at yahoo.com>
> > Cc: Waldo Magnuson <magnuson at mac.com>, hallicrafters at mailman.qth.net
> > Subject: Re: [Hallicrafters] Advice sought on antenna cable type
> >
> > Rodney,
> >
> > Use RG-58, it's what I've been using on my dipole for many years. At the
> lower
> > frequencies, loss isn't even an issue. If you were on 10 Meters and
doing
> a
> > contest, I would suggest something better...
> >
> > Radio Randy
> >
> > Quoting Rodney Bunt <rodney_bunt at yahoo.com>:
> >
> > > RG-213 is almost as good as RG-8 and much lighter.
> > >
> > > At the frequencies (40m) and power (100W) that you are going to be
> using,
> > > RG-58 would be quite
> > > sufficient.
> > >
> > > Yes, it is a bit more lossy, and yes, it won't handle a Kilowatt.
> > >
> > > But it is MUCH lighter, and MUCH MUCH cheaper.
> > >
> > > Rodney
> > > VK2KTZ
> > >
> > > --- Waldo Magnuson <magnuson at mac.com> wrote:
> > > > Hi,
> > > >     I am about ready to put up a 40m dipole antenna between tall
trees
> > > > near my home.  The antenna will be up about 65 ft. (tall trees) and
I
> > > > am concerned with the coax weight from the antenna center to my
house.
> > > > RG-8 seems heavy, RG-8x has been suggested and Radio Shack has
RG-8m.
> > > > The leadin will be about 75 feet and I will be using my HT-37 (100
> > > > watts) on the antenna.  I would appreciate experienced thoughts on
the
> > > > subject.  Thanks.
> > > > Skip Magnuson
> > > >
> > > > _______________________________________________
> > > > List Administrator: Duane Fischer, W8DBF **for assistance**
> > > > dfischer at usol.com
> > > > ----
> > > > Hallicrafters Collectors International: http://www.w9wze.org
> > > > ----
> > > > http://mailman.qth.net/mailman/listinfo/hallicrafters
> > >
> > >
> > > __________________________________
> > > Do you Yahoo!?
> > > The New Yahoo! Shopping - with improved product search
> > > http://shopping.yahoo.com
> > > _______________________________________________
> > > List Administrator: Duane Fischer, W8DBF **for assistance**
> > > dfischer at usol.com
> > > ----
> > > Hallicrafters Collectors International: http://www.w9wze.org
> > > ----
> > > http://mailman.qth.net/mailman/listinfo/hallicrafters
> > >
> >
> >
> >
> > --__--__--
> >
> > Message: 3
> > From: <SGSII at msn.com>
> > To: <hallicrafters at mailman.qth.net>
> > Date: Fri, 3 Oct 2003 18:08:35 -0500
> > Subject: [Hallicrafters] International Harvester Mag. of Gatti's 12th
> Expidition To The Mountains fo The Moon.
> >
> > I have ten of these that are in perfect condition. They were taken from
=
> > Gatti's attic by the man that currently owns the house. I will sell them
=
> > for $15.00 each which includes 1st Class postage in the 48 states.
> >
> > Kirt
> >
> > KC9CBY  73
> >
> > --- StripMime Report -- processed MIME parts ---
> > multipart/alternative
> >   text/plain (text body -- kept)
> >   text/html
> > The reason this message is shown is because the post was in HTML
> > or had an attachment.  Attachments are not allowed.  To learn how
> > to post in Plain-Text go to: http://www.expita.com/nomime.html  ---
> >
> > --__--__--
> >
> > Message: 4
> > To: hallicrafters at mailman.qth.net
> > Date: Fri, 3 Oct 2003 19:40:45 +0000
> > From: Kevin J Ward <kevin_ward at juno.com>
> > Subject: [Hallicrafters] Advice sought on antenna cable type
> >
> > Skip -
> >
> > Have you thought of the advantages of using twin-lead or open-wire line
> > and a tuner?  The feedline would be much, much lighter, and would not
> > drag the feedpoint of the antenna down nearly as much.  Less power would
> > be lost in the feedline, the antenna would work well all across the
band,
> > and it would be useable on other bands as well.
> >
> > I have used homemade open wire line and have also used ordinary 300-ohm
> > twin-lead.  The cheapest TV line available will easily handle the output
> > of your HT-37.  Just remember to take a look in a Radio Amateur's
> > Handbook and follow the recommendations there for reinforcing the
> > feedpoint.  Coax is not the only feed-line.
> >
> > 73,
> > Kevin  N2IE
> >
> > ________________________________________________________________
> > The best thing to hit the internet in years - Juno SpeedBand!
> > Surf the web up to FIVE TIMES FASTER!
> > Only $14.95/ month - visit www.juno.com to sign up today!
> >
> > --__--__--
> >
> > Message: 5
> > From: "Duane Fischer, W8DBF" <dfischer at usol.com>
> > To: <SGSII at msn.com>, <hallicrafters at mailman.qth.net>
> > Subject: Re: [Hallicrafters] International Harvester Mag. of Gatti's
12th
> Expidition To The Mountains fo The Moon.
> > Date: Fri, 3 Oct 2003 20:25:59 -0400
> >
> > OK, I plead dense as Plum Bum on this one. What does International
> Harvester
> > have to do with Hallicrafters? I thought they manufactured farm
> implements.
> >
> > Enlighten me, what have I missed in the translation?
> >
> >
> >
> > ----------
> > From: SGSII at msn.com
> > To: hallicrafters at mailman.qth.net
> > Subject: [Hallicrafters] International Harvester Mag. of Gatti's 12th
> Expidition
> > To The Mountains fo The Moon.
> > Date: Friday, October 03, 2003 7:08 PM
> >
> > I have ten of these that are in perfect condition. They were taken from
> Gatti's
> > attic by the man that currently owns the house. I will sell them for
> $15.00 each
> > which includes 1st Class postage in the 48 states.
> >
> > Kirt
> >
> > KC9CBY  73
> >
> > --- StripMime Report -- processed MIME parts ---
> > multipart/alternative
> >   text/plain (text body -- kept)
> >   text/html
> > The reason this message is shown is because the post was in HTML
> > or had an attachment.  Attachments are not allowed.  To learn how
> > to post in Plain-Text go to: http://www.expita.com/nomime.html  ---
> > _______________________________________________
> > List Administrator: Duane Fischer, W8DBF **for assistance**
> > dfischer at usol.com
> > ----
> > Hallicrafters Collectors International: http://www.w9wze.org
> > ----
> > http://mailman.qth.net/mailman/listinfo/hallicrafters
> >
> > --__--__--
> >
> > Message: 6
> > From: "Barrie Smith" <barrie at centric.net>
> > To: <hallicrafters at mailman.qth.net>,
> > "Kevin J Ward" <kevin_ward at juno.com>
> > Subject: Re: [Hallicrafters] Advice sought on antenna cable type
> > Date: Fri, 3 Oct 2003 18:40:47 -0600
> >
> > I'd certainly second that recommendation.
> >
> > Put up the longest piece of wire you can, feed it in the center with
> > open-wire line, use a truly balanced antenna tuner, then load up on any
> > band.
> >
> > Works great for SWLing, too.
> >
> > Probably the best source for the necessary balanced antenna tuner is on
> > Cebiks web page.
> >
> > 73, Barrie, W7ALW
> >
> >
> > ----- Original Message -----
> > From: "Kevin J Ward" <kevin_ward at juno.com>
> > To: <hallicrafters at mailman.qth.net>
> > Sent: Friday, October 03, 2003 1:40 PM
> > Subject: [Hallicrafters] Advice sought on antenna cable type
> >
> >
> > > Skip -
> > >
> > > Have you thought of the advantages of using twin-lead or open-wire
line
> > > and a tuner?  The feedline would be much, much lighter, and would not
> > > drag the feedpoint of the antenna down nearly as much.  Less power
would
> > > be lost in the feedline, the antenna would work well all across the
> band,
> > > and it would be useable on other bands as well.
> > >
> > > I have used homemade open wire line and have also used ordinary
300-ohm
> > > twin-lead.  The cheapest TV line available will easily handle the
output
> > > of your HT-37.  Just remember to take a look in a Radio Amateur's
> > > Handbook and follow the recommendations there for reinforcing the
> > > feedpoint.  Coax is not the only feed-line.
> > >
> > > 73,
> > > Kevin  N2IE
> > >
> > > ________________________________________________________________
> > > The best thing to hit the internet in years - Juno SpeedBand!
> > > Surf the web up to FIVE TIMES FASTER!
> > > Only $14.95/ month - visit www.juno.com to sign up today!
> > > _______________________________________________
> > > List Administrator: Duane Fischer, W8DBF **for assistance**
> > > dfischer at usol.com
> > > ----
> > > Hallicrafters Collectors International: http://www.w9wze.org
> > > ----
> > > http://mailman.qth.net/mailman/listinfo/hallicrafters
> > >
> > >
> >
> >
> >
> > --__--__--
> >
> > Message: 7
> > From: "Ian Szekeres" <ian at urbancom.net>
> > To: <hallicrafters at mailman.qth.net>
> > Subject: Re: [Hallicrafters] Advice sought on antenna cable type
> > Date: Fri, 3 Oct 2003 21:35:17 -0500
> >
> > I'm about to do exactly this, as my matchbox just arrived today.  I was
> > wondering before cutting my feedline to some random length, if anyone
> could
> > give some general length to start with.  I will be feeding a 60ft
doublet
> at
> > 15ft. with 300 ohm twinlead and plan to work 40/20/15/10m. I am going to
> be
> > using a matchbox as a tuner into my ht-32b.  It is a relatively short
run
> to
> > the shack (20-25 ft) and I am just looking for a ballpark number or
> lengths
> > to stay away from.  Any tips on using a matchbox with the 32b would also
> be
> > appreciated.
> >
> > Thanks
> > --ian
> > KB9TQO
> >
> > ----- Original Message -----
> > From: "Barrie Smith" <barrie at centric.net>
> > To: <hallicrafters at mailman.qth.net>; "Kevin J Ward"
<kevin_ward at juno.com>
> > Sent: Friday, October 03, 2003 7:40 PM
> > Subject: Re: [Hallicrafters] Advice sought on antenna cable type
> >
> >
> > > I'd certainly second that recommendation.
> > >
> > > Put up the longest piece of wire you can, feed it in the center with
> > > open-wire line, use a truly balanced antenna tuner, then load up on
any
> > > band.
> > >
> > > Works great for SWLing, too.
> > >
> > > Probably the best source for the necessary balanced antenna tuner is
on
> > > Cebiks web page.
> > >
> > > 73, Barrie, W7ALW
> > >
> > >
> >
> >
> > --__--__--
> >
> > Message: 8
> > From: "Duane Fischer, W8DBF" <dfischer at usol.com>
> > To: <hallicrafters at mailman.qth.net>
> > Date: Fri, 3 Oct 2003 22:36:23 -0400
> > Subject: [Hallicrafters] Remember Saturday HCI 40 Meter Net
> >
> >
> >
> > Please join us on Saturday October 4th for the HCI 40 meter Net. The
> pre-Net
> > will begin at 12:30 PM EDT, (1630 UTC). The Net itself commences at 1:00
> PM EDT,
> > (1700 UTC). The frequency will be 7.280 Mhz lsb +/- for key clicks, mike
> > splatter and the sound of my toilet burping! Yes, thanks to the county
> road
> > commission and their scrub and paint eh inside of the sewer lines, we
now
> have
> > porcelin thrones that talk to us. Just pull the handle down and wait to
> see what
> > happens as the water rushes out and the surprises rush in!
> >
> > The compressed air they are using is so powerful that when that
mechanical
> sewer
> > rat of their's goes by the sewer outlet line from a house, it blows some
> air up
> > that pipe. The air is intended to cut roots off that have grown through
> the
> > concrete sides of the sewer pipes. Talk about a blast! If you have the
> toilet
> > seat and lid down, the air blows them up like a volcano going off, but
> instead
> > of red hot lava spewing into the atmosphere and sulfurous fumes choking
> all life
> > forms in a ten mile radius to death, you get pungent sewer gas and
putrid
> brown
> > water splattering your walls and cieling! Where you do not want to be,
is
> > sitting on your throne when this happens! Guaranteed to cure
constipation
> for
> > life!
> >
> > If you have never had this wonderful aplication of robotic sewer rat
> technology
> > in your community, just wait! It is coming. No, I am not inventing this,
> it is
> > for real.  When it first happened here I thought my toilet was
possessed!
> Water
> > that would gag a bottom feeder was spewing out of my toilet, it was
> roaring with
> > this unearthly sound like some ravenously starving alien who had you on
> his menu
> > and the house smelled like one of those porta-johns at the county fair
> after
> > five hundred people had used it after the toilet paper ran out on a day
> that was
> > 100F outside and 135F inside!
> >
> > The toilet kept belching like a Brontosaurus who had eaten some bad
fungus
> > forlunch and spurting water out like one of those Yellowstone geysers.
> Then it
> > sounded like it was gargling with hydrogen peroxide, choked on the foam
> and
> > hurled the contents of its bowels over the smoked glass sliding shower
> doors,
> > splattered off the white tiled walls and then filled up the tub with a
> foul
> > liquid that would make one of those clay lined toxic land fill pools of
> > industrial poison look like the YMCA anti-fungal foot bath! More
> disgusting than
> > waking up in the morning, looking in the mirror and seeing green moss
like
> crud
> > dangling from your incisors! Should have brushed after eating that all
> green
> > vegetable pizza before going to bed!
> >
> > So be warned ye lovers of things that still go glow in the dark, that
> weird
> > background sound like a blender with a nitrous oxide booster kicking in
is
> just
> > my toilet being tormented by the wonders of sewer cleaning technology
that
> is
> > causing me to wear a path to the old Pine woods with my tattered Sears
and
> > Roebuck catalog. Yes I remember there is poison ivy out there not too
far
> from
> > the forty foot TV tower that supports the IAC forty and eighty meter
> double
> > bazooka antennas, but a butt rash is better than having every hair on
your
> body
> > being burned off by a blast of sewer gas that could defoliate N. Korea!
> >
> > I hope to hear some of you above the roar of this super sewer robotic
> rodent, so
> > take advantage of the good propagation being forecast for tomorrow and
> join us.
> > And I don't want any of those smart remarks tomorrow about my signal
> stinking
> > either! Maybe Mr. Robo-Rodentia will visit your neighborhood next. When
it
> does,
> > an outhouse suddenly takes on an entirely new importance and actually
> looks and
> > smells appealing. Remember, I can find you on qrz.com and 'IT' is gps
> guided.
> > Not that I would accidentally reprogram its sewer trail trek map to your
> house
> > ..
> >
> > Duane Fischer, W8DBF
> > NCS: Hallicrafters Collectors International
> >
> >
> > --__--__--
> >
> > Message: 9
> > Date: Fri, 3 Oct 2003 19:49:08 -0700 (PDT)
> > From: Glen Zook <gzook at yahoo.com>
> > Subject: Re: [Hallicrafters] Advice sought on antenna cable type
> > To: Barrie Smith <barrie at centric.net>, hallicrafters at mailman.qth.net,
> > Kevin J Ward <kevin_ward at juno.com>
> >
> > At 40 meters the loss in the feedline is basically nil
> > (I know, there is always some, the most with RG58/U of
> > the types mentioned, but for all practical purposes it
> > can be ignored at 7 MHz).
> >
> > Now, if he is only interested in 40 meter operation,
> > then he will be better off using coax since this will
> > not require an additional piece of equipment (namely
> > an "antenna tuner") in his shack.  An antenna tuner
> > requires a "bit" of tuning and adds to the complexity
> > of the the installation.
> >
> > If he is interested in adding 20 and 10 (15 meters
> > will work automatically on a 40 meter dipole), then it
> > would be cheaper just to add wires for 20 and 10
> > meters in parallel with the 40 meter arrangement
> > ("parallel" or "fan" dipole).  Those antennas work
> > fine and are still fed directly with coax which
> > matches the output impedance of the HT-37, thus,
> > eliminating the need for an antenna tuner.  Around $5
> > for the wire if he doesn't have it around!
> >
> > With the HT-37 you don't have to worry about the WARC
> > bands or the new 60 meter band.  It doesn't work
> > there!
> >
> > Glen, K9STH
> >
> >
> > --- Barrie Smith <barrie at centric.net> wrote:
> >
> > Put up the longest piece of wire you can, feed it in
> > the center with open-wire line, use a truly balanced
> > antenna tuner, then load up on any band.
> >
> > =====
> > Glen, K9STH
> >
> > Web sites
> >
> > http://home.comcast.net/~k9sth
> > http://home.comcast.net/~zcomco
> >
> > __________________________________
> > Do you Yahoo!?
> > The New Yahoo! Shopping - with improved product search
> > http://shopping.yahoo.com
> >
> >
> > --__--__--
> >
> > _______________________________________________
> > Hallicrafters mailing list
> > Hallicrafters at mailman.qth.net
> > http://mailman.qth.net/mailman/listinfo/hallicrafters
> >
> >
> > End of Hallicrafters Digest
>
>
> _______________________________________________
> List Administrator: Duane Fischer, W8DBF **for assistance**
> dfischer at usol.com
> ----
> Hallicrafters Collectors International: http://www.w9wze.org
> ----
> http://mailman.qth.net/mailman/listinfo/hallicrafters
>




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