[Hammarlund] Re: Hammarlund digest, Vol 4 #286 - 3 msgs

Mon, 23 Feb 2004 23:30:56 -0500

Craig, I had a hunch that filtering was the problem. Way to go. I have a
Knight-Kit Star Roamer which is not a DX machine but nice for bedside
listening. Got it at a hamfest for five dollars. Had a loud hum due to worn
out filter cap can. I installed 4700mfd caps according to the parts list but
still had some hum. In my junkbox, I found a Mallory cap with screw
terminals on it. A big monster (100,000MFD at 100 volts). What else would I
use it for? My Star Roamer has absolutely no hum. This big blue cap sits on
the table behind the radio hooked up by a couple of wires. Hey, whatever
works.  Congrats on your HQ-170.  Mike
----- Original Message -----
From: <[email protected]>
To: <[email protected]>
Sent: Monday, February 23, 2004 4:05 AM
Subject: Hammarlund digest, Vol 4 #286 - 3 msgs


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> Today's Topics:
>
>    1. FS: Hammarlund HQ-129X ([email protected])
>    2. HCI Honors Washington's Birthday During Net (Duane Fischer, W8DBF)
>    3. HQ170 hum is gone. (Craig Roberts)
>
> --__--__--
>
> Message: 1
> From: [email protected]
> Date: Sun, 22 Feb 2004 10:20:28 EST
> To: [email protected]
> Subject: [Hammarlund] FS: Hammarlund HQ-129X
>
> Hello Everyone, I have for sale one very nice and properly working
HQ-129X.
> Because it works so well I have enjoyed using it for quite a while now.
The
> cabinet and front panel are very nice with only a few minor scratches and
it has
> its original knobs. It also has the early Hammarlund crystal calibrator
which
> is rare on this model. I believe it could be a factory installed
calibrator
> because the send/receive switch is a three function switch including a
> "calibrate" position but the front panel is not so marked. The HQ-129X is
possibly the
> best bargain out there for the most performance per dollar spent. HQ-129Xs
> were very well designed, are very stable and the well designed crystal
filter's
> performance on the ham bands is up to meeting the challenge of tough QRM
in
> crowded band conditions. Price- $150 plus actual cost shipping to your
QTH.
>
> Thanks,
> Greg; WA1KBQ
> Charlotte, NC
>
>
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> --__--__--
>
> Message: 2
> From: "Duane Fischer, W8DBF" <[email protected]>
> To: <[email protected]>
> Date: Sun, 22 Feb 2004 11:06:06 -0500
> Subject: [Hammarlund] HCI Honors Washington's Birthday During Net
>
>
>
> As always, all flavors and cents of vintage gear are welcome - (if it
isn't
> vacuum, remain silent or just lie!)
>
> Today, Sunday February 22nd, is George Washington's birthday. Yea George!
Thanks
> to my grandson Brandon's generosity, he shared his Cold with me. Forgot to
tell
> him some things are best not to share, obviously. One is any disease, two
is
> your wife and three is your Hallicrafters as some knob twisting rice box
> generation person will screw it up for sure! I rarely catch a local blight
> circulating among the populous, but Brandon gives me what he has no matter
how
> hard I try to avoid accepting his offerings! When I get sick, I get SICK!
I did
> not disappoint myself, although I truly wish I would have, and I feel like
a
> word I can't print here -
>
> The pre-Net portion, complete with nose blowing and sneezing, will
commence at
> 12:45 PM EST, (1745 UTC) and the Net proper at 1:15 PM EST, (1815 UTC).
Don't
> ask how I feel, as I don't think I can say that word on the air either!
The
> frequency will be 14.293 Mhz usb +/- for key clicks, mike splatter and for
their
> sake, nobody better splatter my MI alligator today! My nose is running,
the
> gerbils are frantically sprinting on their little treadmill to keep these
tubes
> lit in the HF amp, (the extra caffeine I put in their food could be
related to
> this!) and I am sipping something hot in a mug. Can't smell anything, not
even
> my grandson who ate cold pizza for breakfast and is a lethal weapon, not
sure
> what is in this cup. Then again, he fixed it, maybe it is best I don't
know! I
> may never forget the time he got the hot chocolate mix confused with the
> chocolate Exlax ...
>
> I hope to hear some of you later.  I will be on air at 12:15 PM EST
aprox.,
> (1715 UTC), tuning up this hurler of electron particles. Be sure to talk a
lot
> today, so I can just sit here and enjoy my misery. I hate sneezing on the
desk
> mike, makes such a mess! Splatters the digital display too, but who cares,
I
> can't read it anyhow!
>
> Duane Fischer, W8DBF
> NCS: Hallicrafters Collectors International
>
>
>
>
> --__--__--
>
> Message: 3
> From: "Craig Roberts" <[email protected]>
> To: "'Lee Bahr'" <[email protected]>,
> <[email protected]>
> Date: Sun, 22 Feb 2004 17:37:55 -0500
> Subject: [Hammarlund] HQ170 hum is gone.
>
> Many thanks to Al and Lee and Ed and Mike and John and Kim and my Seventh
> Grade teacher Mrs. Ludy who inspired me to become what it is that I am.
:-)
>
> Seriously, guys, many thanks for the helpful hints and tips (and even
> pictures) regarding my hum problem and transformer retrofitting project.
> Terrific stuff!
>
> In the end, it was 120 cycle hum (thanks for asking again, Al) and -- and
as
> was pointed out, that's means power supply ripple.  An extra 40 uf 'lytic
in
> parallel with the cap from the diodes solved the problem.  That's an area
of
> the power supply that had been modified by a previous owner.  I had
replaced
> the original four-section electrolytic with new, individual caps (two the
> sections were already bad), but -- as Mike suggested -- I guess I needed
> more MFDs.
>
> Now -- I need a Hammarlund transmitter.  Hmmmmmm.
>
> 73,
>
> Craig
> W3CRR
>
>
>
>
> --__--__--
>
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