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 Post subject: Differences Between a Hammarlund HQ-100 and an HQ-100-C
PostPosted: Sep Mon 22, 2008 4:24 pm 
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Joined: Jan Thu 01, 1970 1:00 am
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Location: St. Louis, MO, USA
An HQ -100-C "followed me home" from the Peoria hamfest and I'm curious as to what the differences are between the 100 and the 100-C. I can see some HQ 100 manuals on the web but can't find information on the HQ 100-C. Is the 100-C radically different?

Thanks;
Dennis


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 Post subject: Re: Differences Between a Hammarlund HQ-100 and an HQ-100-C
PostPosted: Sep Mon 22, 2008 6:32 pm 
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Location: Potomac, MD 20854
Dennis, the only difference is the clock (the -C in the model number). The plain HQ-100 just has the plastic cover over the front panel cutout; the HQ-100-C has the clock.

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 Post subject:
PostPosted: Sep Mon 22, 2008 6:46 pm 
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Location: Lakewood, California
Dennis,

The HQ-100 manual introduction page mentions that the 100-C incorporates a Telechron automatic electric clock-timer in its design. The purpose is to turn the receiver on ahead of the anticipated operating time so that the receiver is at a stable operating temperature.

As Avery says, that's the only difference.

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 Post subject:
PostPosted: Sep Tue 23, 2008 12:47 pm 
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Location: St. Louis, MO, USA
Thanks for the info, guys. The reason I asked is that my 100-C has what appears to be a crystal filter in an IF stage. This is not a calibrator module. The crystal in it is 455 Khz, not 100Khz. It is mounted just behind the 6AQ5 audio output tube. The installation workmanship is very good and this might even be a factory modification. The ham publications at the time might have had a modification also, but who ever did this knew what he was doing. BTW the radio seem to work well.

- Dennis


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 Post subject:
PostPosted: Sep Tue 23, 2008 1:48 pm 
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Location: Coopersville, MI 49404-9643
Hi Dennis,

There never was a crystal filter in an HQ-100/A/C from the factory. The A version has a solid state power supply and the C version has a clock. The AC version has both and you will find plenty of straight HQ-100 that have a clock. It was a kit that could be added to many of their later receivers. But NO IF filter. Neat Idea. That receiver was Hammarlund's version of an S-38 and works better. The HQ-110 was the ham band version of the 100 and the HQ-105TR was the CB/10 meter 5 Watt crystal controlled transmitter version of the same radio. What you need to find to go with that, to make it set up and bark, is an HC-10.

Kim

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 Post subject:
PostPosted: Sep Tue 23, 2008 7:45 pm 
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Location: Albuquerque, NM 87123
The HQ100 was Hammarlund's version of the S-38?

You're kidding, right?

The S-38 was about the most basic 'communications' receiver you could buy (in '46). The HQ100 was light years ahead of that little toy. Sure, the 100 isn't on par with a 180A or other top quality receivers, but there is no comparison.


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 Post subject:
PostPosted: Sep Tue 23, 2008 10:06 pm 
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Location: Freeport, LI, New York 11520
I'd say an HR-10 (Heathkit) would be more on par with an S-38.

And only the '38 that had no suffix letter. (Their first one)

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 Post subject:
PostPosted: Sep Wed 24, 2008 3:02 am 
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Location: Southern NH, 03076
Johnnysan wrote:
The HQ100 was Hammarlund's version of the S-38?

You're kidding, right?

The S-38 was about the most basic 'communications' receiver you could buy (in '46). The HQ100 was light years ahead of that little toy. Sure, the 100 isn't on par with a 180A or other top quality receivers, but there is no comparison.


But I certainly wouldnt waste a HC-10 on one either.

Carl


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 Post subject:
PostPosted: Sep Wed 24, 2008 3:30 am 
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Dennis Banker wrote:
Thanks for the info, guys. The reason I asked is that my 100-C has what appears to be a crystal filter in an IF stage. This is not a calibrator module. The crystal in it is 455 Khz, not 100Khz. It is mounted just behind the 6AQ5 audio output tube. The installation workmanship is very good and this might even be a factory modification. The ham publications at the time might have had a modification also, but who ever did this knew what he was doing. BTW the radio seem to work well.

- Dennis


That is probably an optional XC-455 BFO Kit.

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Gulfport, MS.
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 Post subject:
PostPosted: Sep Wed 24, 2008 3:33 am 
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From who?

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 Post subject:
PostPosted: Sep Wed 24, 2008 3:33 am 
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dbl

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Last edited by Jim Koehler on Sep Wed 24, 2008 2:06 pm, edited 1 time in total.

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 Post subject:
PostPosted: Sep Wed 24, 2008 12:09 pm 
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Location: Winchester, VA USA
I went for a $100 HQ-100A in 1958 or so, up from an S20-R.

Boy what an improvement, I felt I had a real communications receiver.

Still have it!

Mike


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 Post subject:
PostPosted: Sep Wed 24, 2008 1:44 pm 
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Location: St. Louis, MO, USA
Up to now, I've been a Hallicrafters/National kind of guy. This is the first Hammarlund I've had. I remember seeing several HQ-100s in other people's shacks, but never got to use one until now. Just my observation, but the quality seems on a par with similar National sets and a little better than Hallicrafters sets.
The idea about the mod being a BFO sounds likley. I'll look onside and see what's there.
- Dennis


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 Post subject:
PostPosted: Sep Wed 24, 2008 10:24 pm 
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Posts: 11481
Location: Southern NH, 03076
Dennis Banker wrote:
Up to now, I've been a Hallicrafters/National kind of guy. This is the first Hammarlund I've had. I remember seeing several HQ-100s in other people's shacks, but never got to use one until now. Just my observation, but the quality seems on a par with similar National sets and a little better than Hallicrafters sets.
The idea about the mod being a BFO sounds likley. I'll look onside and see what's there.
- Dennis



Id rate it below the NC-140 and NC-190 since both of those are double conversion. More on a par with the NC-188.

Carl


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 Post subject:
PostPosted: Sep Wed 24, 2008 11:37 pm 
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Location: Coopersville, MI 49404-9643
Hi again All,
Need to apologize if my comments offended some. I was Thinking s-40 and typed S-38. What I was referring to was receiver design i.e. single conversion, s-meter etc. Yes, an HQ-100 is several steps above an S-38 and Hammarlund was always better as far a quality went especially on their lower end receivers.

Kim

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kim.herron@sbcglobal.net
616-677-3706


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 Post subject:
PostPosted: Sep Thu 25, 2008 1:19 am 
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Jim Koehler wrote:
From who?


If you are referring to the XC-455 BFO Kit, it was a Hammarlund option.

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Les Locklear
Gulfport, MS.
Dx'ing Since '57


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 Post subject:
PostPosted: Sep Thu 25, 2008 2:34 am 
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Thanks Les!

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 Post subject:
PostPosted: Oct Sun 05, 2008 4:01 am 
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I recently picked up one of these (for $10) it appears all original. This is my first Hammarlund and am looking forward to getting into it.


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 Post subject:
PostPosted: Oct Sun 05, 2008 5:49 am 
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Make sure you have a good tool box for taking off the panel....

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 Post subject:
PostPosted: Oct Sun 05, 2008 2:18 pm 
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I like the way the front panel is diecast.


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