[Hallicrafters] Re: Hallicrafters digest, Vol 4 #278 - 11 msgs

Tue Sep 2 10:22:47 EDT 2003

Your radio looks to be a TW-1000. Made between 1952 and 1956 (plus or
minus).  The world wide series included the TW500, 600, TW 1000a and TW2000.
Electrically the later two are the same as the 1000 with some differences in
antennas and cabinets. (slight).  Difficult to tell from the picture, but
cabinet apprears to be a TW-1000.  If antenna is a ferrite loop type mounted
in the chassis, it is a TW-1000a.  It should be worth between $75 and $100,
possibly more per condition, and the right collector.  I don't see them for
sale often.  Hope you find it a keeper.  Nice old tube type portable radio.

Possibly someone else has more info for you or may correct some of my stated
models or opinion.

David Drake, WD9CMD

----- Original Message -----
From: <hallicrafters-request at mailman.qth.net>
To: <hallicrafters at mailman.qth.net>
Sent: Tuesday, September 02, 2003 3:04 AM
Subject: Hallicrafters digest, Vol 4 #278 - 11 msgs

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> Today's Topics:
>
>    1. Collins Collectors Association First Wednesday AM Night (Larry
Saletzki)
>    2. Re: Collins Collectors Association First Wednesday AM Night (Larry
Saletzki)
>    3. Re: SX-100 BFO Setting (Frederick Bray)
>    4. book sale (Anthony W. DePrato)
>    5. Arco Silver Mica Capacitors (W. David Paperman)
>    6. Hallicrafters World Wide (Ray V.)
>    7. S53A BFO problems (Andrew Mitchell)
>    8. Need junk HP5253A or B (Tom Smith)
>    9. SX-100 AVC question (krkaplan at cox.net)
>   10. sx-28a IF (JFran10657 at aol.com)
>   11. SX-100 AVC question - Answer (Rodney Bunt)
>
> --__--__--
>
> Message: 1
> From: "Larry Saletzki" <wa9vrh at mtco.com>
> To: "Hallicrafters ref" <Hallicrafters at mailman.qth.net>
> Date: Mon, 1 Sep 2003 07:50:52 -0500
> Subject: [Hallicrafters] Collins Collectors Association First Wednesday AM
Night
>
>
> FIRST WEDNESDAY AM NIGHT !!! Sponsored by the Collins Collectors
> Association.
>
> Cedar Rapids, Iowa (QRZ) - Wednesday  Sept. 3rd  at 8PM local time marks
the
> start of the latest chapter of  First Wednesday AM Night, drawing hundreds
> of vintage stations from across the country.
>
> The event is anchored by a "tall ship" AM station in each time zone, who
> runs the gathering for an hour, starting at 8PM in each time zone and
> starting on the East Coast. Stations check-in using Collins and other
> transmitters with AM capabilities, new and old. The idea is to revel in
this
> nostalgic mode, enjoy giving vintage equipment a "run," and sharing some
> storytelling about classic vacuum tube homebrew and commercial designs.
>
> In months past, anchor stations have included those running the beautiful
> Collins 300-G, pictured below, as well as those running the amateur KW-1
and
> other noted models.
>
> http://www.amwindow.org/pix/jpg/300g.jpg
>
> LISTEN for these anchors and stop by to say hello, won't you?  You don't
> have to be running Collins or vintage gear to be welcomed into the group.
>
> 8P-9P East Coast Anchor:  Bill, K2LNU  (upstate NY)
>
> 8P-9P Midwest Anchor:  Dean, KA6BGW/Ø (Missouri)
>
> 8P-9P Rocky Mountain Anchor: Jim, WAØLSB (Colorado)
>
> 8P-9P West Coast Anchor:  Bill, N6PY  (California)
>
> comments please to wa9vrh at mtco.com
>
>
>
>
> --__--__--
>
> Message: 2
> From: "Larry Saletzki" <wa9vrh at mtco.com>
> To: "Hallicrafters ref" <Hallicrafters at mailman.qth.net>
> Subject: Re: [Hallicrafters] Collins Collectors Association First
Wednesday AM Night
> Date: Mon, 1 Sep 2003 08:07:58 -0500
>
> Frequency 3880 kcs sorry for the omission Larry WA9VRH
>
>
>
> --__--__--
>
> Message: 3
> Date: Mon, 01 Sep 2003 07:39:46 -0700
> From: Frederick Bray <fbray at mminternet.com>
> To: Rodney Bunt <rodney_bunt at yahoo.com>
> Cc: "hallicrafters at mailman.qth.net" <hallicrafters at mailman.qth.net>
> Subject: Re: [Hallicrafters] SX-100 BFO Setting
>
> I will give the injection method a try.   If that doesn't do it,  I will
try the other methods.
>
> Thanks to everyone who has responded.
>
> (I have a Mk1, by the way.)
>
> Rodney Bunt wrote:
>
> > Inject 50kHz into the IF and adjust for ZERO beat. inject at pin 1 of
V6.
> >
> > NOTE: the IF freq depends upon which version of XS-100 you have. The IF
for a SX-100Mk2 is
> > 50.75kHz, for a SX-100Hk1 it is 50.5kHz
> >
> > A real seat of the pants adjustment is to set selectivity to 500Hz
(.5kHz) remove antenna and tune
> > the BFO for the lowest pitch noise, it will go down and back up again,
adjust the 'whoosh' for
> > lowest pitch.
> >
> > Rodney
> > VK2KTZ
> >
> > --- Frederick Bray <fbray at mminternet.com> wrote:
> > > I am finishing up the restoration of my SX-100, but I have had
problems
> > > adjusting the BFO as described in the manual.  It is probably my own
> > > fault that I lost the original adjustment.  When I got the radio, I
> > > couldn't the BFO to function, even after re-capping the radio and
> > > replacing the tube.  I assumed that the former owner had mis-adjusted
> > > the coil tuning and tried adjusting it throughout its range to no
> > > avail.  Turned out that one of the resistors in the circuit had
> > > increased in value well up into the megohm range, dropping the voltage
> > > below what was required.
> > >
> > > Anyway, after replacing the resistor, the BFO works, but I can't get
it
> > > adjusted down to the spec's in the manual.  I figure that I could
> > > probably set it correctly using my HP freq. counter -- which goes down
> > > to 10 Hz. or with a scope.  Unfortunately, I can't find the right
point
> > > and/or technique to pick up the BFO signal without loading the circuit
> > > to the point that I substantially change the frequency.
> > >
> > > I wonder if anyone has been down this road and can offer suggestions
as
> > > to where I might pick off the BFO output so that I can set it to 50
KHz?
> > >
> > > Many thanks.
> > >
> > > Fred
> > > KE6CD
> > >
> > > _______________________________________________
> > > 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!?
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> > _______________________________________________
> > 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: 4
> Date: Mon, 01 Sep 2003 11:00:55 -0400
> To: hallicrafters at mailman.qth.net
> From: "Anthony W. DePrato" <wa4jqs at mikrotec.com>
> Subject: [Hallicrafters] book sale
>
> off topic
> but thought some of you might read steven king. i have  he library in red
> bound . some still in plastic wrap. i think there are 28 or 30 books. i
> paid 18 bucks each for them. will take $100 plus shipping for the lot if
> anyone is interested. need the room.
> 73 Tony wa4jqs
> Kentucky
>
>
> --__--__--
>
> Message: 5
> Date: Mon, 01 Sep 2003 10:01:19 -0500
> From: "W. David Paperman" <wpaper at ev1.net>
> Organization: W. David Paperman, Electronics
> To: heathkit <heathkit at mailman.qth.net>,
> Boatanchors <boatanchors at mailman.qth.net>,
> Hallicrafters Reflector <hallicrafters at mailman.qth.net>,
> Home Brew <homebrew at qth.net>, Johnson <johnson at qth.net>
> Subject: [Hallicrafters] Arco Silver Mica Capacitors
>
> I have come into a quantity of NOS distributor stock Arco VDM20 1000
> volt 5% silver mica capacitors. Values (in pf) are as follows:
>
> 18 20 27 33 39 43 56 75 82 150 160 200 220 240 270 300 330 360
> 390 470 500 510 680 1300 1600 1800 2400
>
> Price of $3.00 ea. includes USPS shipping charges within the U.S. No
> minimum order and no shipping or handling charges.
>
> I am not interested in bulk offers. No dealer offers accepted. These are
> for the Boatanchor community.
>
> Dave, W5WP
>
>
>
>
>
>
>
>
> --__--__--
>
> Message: 6
> Date: Mon, 01 Sep 2003 11:17:05 -0400
> From: "Ray V." <w2ec at attglobal.net>
> To: List-Hallicrafters <Hallicrafters at mailman.qth.net>
> Subject: [Hallicrafters] Hallicrafters World Wide
>
> Saw a Hallicrafters World Wide receiver in a store the other day. Anyone
> know if it had a model number assigned? Only markings I could find were
> Hallicrafters World Wide.
>
> Picture at "http://www.w2ec.com/HallicraftersWW.jpg"
>
> 73, Ray  W2EC
>
>
>
> --__--__--
>
> Message: 7
> Date: Mon, 01 Sep 2003 13:22:16 -0400
> From: Andrew Mitchell <amitchell at sympatico.ca>
> To: hallicrafters at mailman.qth.net
> Subject: [Hallicrafters] S53A BFO problems
>
> I have just recently completed recapping an S53 and have found that I
> still have problems with the BFO.  While the receiver worked prior to
> recapping, it's BFO did not.  Everything else would appear to be fine;
> great sensitivity and audio and all voltages reasonably close to Sams
> chart.  There is no audible beat with the BFO on and no discernable
> difference in audio with the switch in either position.
>
> Any pointers would be much appreciated.
>
> Tks es 73
> Andy
>
>
> --__--__--
>
> Message: 8
> From: "Tom Smith" <tsmith at hal-pc.org>
> To: <collins-request at mailman.qth.net>, <hbr-request at mailman.qth.net>,
> "Boatanchors" <boatanchors at theporch.com>,
> <hallicrafters at mailman.qth.net>, <national at mailman.qth.net>
> Date: Mon, 1 Sep 2003 15:09:24 -0700
> Subject: [Hallicrafters] Need junk HP5253A or B
>
> I am building a AM rig from the junk box using a 833 final and vacuum =
> caps in the tank circuit. I had a dead HP5252B plug in for the HP5245 =
> counter that donated its reduction gearing. Unfortunately my junkbox has =
> a limited number of 5253 plugins.=20
>
> Is there a dead 5253 A or B plugin (both use the same reduction setup) =
> out there somewhere that I might buy or trade for?? Please email me =
> directly what you have and how much you need to pry it away.
>
> Thanks,
> Tom  N5AMA=20
>
>
>
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> The reason this message is shown is because the post was in HTML
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>
> --__--__--
>
> Message: 9
> From: krkaplan at cox.net
> To: hallicrafters at mailman.qth.net
> Date: Mon, 01 Sep 2003 19:00:36 -0700
> Subject: [Hallicrafters] SX-100 AVC question
>
>   My SX-100 Mk 2 gets much louder when I switch off the AVC. For instance,
if I set
> the RF gain (Sensitivity) at 10 and then switch off the AVC, I need to
reduce the RF
> gain to around 7.5 to 8 to get a comparable signal level. Is this normal
behavior for
> an SX-100 or do I have an AVC issue? I kinda expected it to be the
opposite. What
> say you SX-100 owners?
>
> 73's Ken Kaplan kb7rgg
>
>
> --__--__--
>
> Message: 10
> From: JFran10657 at aol.com
> Date: Mon, 1 Sep 2003 22:21:19 EDT
> To: hallicrafters at mailman.qth.net
> Subject: [Hallicrafters] sx-28a IF
>
> Hi gang
> I finally got most of the gremlins out of my sx-28a and was aligning it'
> I would like to know what some of u have noted as to the IF and osc-mixer
> frequency.
> I have been getting 501 kc IF and o/m difference.
> Is this way off what is expected?
>
>
> Regards and best
> Jim  ka2zuu
>
>
>
> --- 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: 11
> Date: Mon, 1 Sep 2003 21:37:05 -0700 (PDT)
> From: Rodney Bunt <rodney_bunt at yahoo.com>
> Subject: [Hallicrafters] SX-100 AVC question - Answer
> To: krkaplan at cox.net, hallicrafters at mailman.qth.net
>
> There are two AVC schemes.
>
> In the Mk1 model a delayed AGC is employed, through R46 and R47 a 4.5v
reverse bias is applied to
> pin 9 of the V7 so that the IF signal level must be above this to have any
effect on the AVC.
>
> In the Mk2 this was entirely done away with, it would be quite easy to
reconstruct a delayed AGC
> for a Mk2
>
> Rodney
> VK2KTZ
>
> --- krkaplan at cox.net wrote:
> >   My SX-100 Mk 2 gets much louder when I switch off the AVC. For
instance, if I set
> > the RF gain (Sensitivity) at 10 and then switch off the AVC, I need to
reduce the RF
> > gain to around 7.5 to 8 to get a comparable signal level. Is this normal
behavior for
> > an SX-100 or do I have an AVC issue? I kinda expected it to be the
opposite. What
> > say you SX-100 owners?
> >
> > 73's Ken Kaplan kb7rgg
> >
> > _______________________________________________
> > 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!?
> Yahoo! SiteBuilder - Free, easy-to-use web site design software
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>
>
> --__--__--
>
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>
>
> End of Hallicrafters Digest