[Hammarlund] HQ-110 question...or five...

[Carl]

The 170 has all the faults of the 110 Ken and it adds a few of its own but 
at least the HC-10 is built in. I opted for a HQ-180 with the noise blanker 
instead and it already had the 6C4 filament on mod which tends to eat them 
up. Right now the 180 is suffering from SMD.

The HQ-145 can often be found for 110 prices and is a better platform to 
improve on.

Carl
KM1H



----- Original Message ----- 
From: "Kenneth G. Gordon" <kgordon2006 at frontier.com>
To: <lardiere at ix.netcom.com>
Cc: <Hammarlund at mailman.qth.net>
Sent: Thursday, June 09, 2011 2:00 PM
Subject: Re: [Hammarlund] HQ-110 question...or five...


> On 9 Jun 2011 at 0:00, lardiere at ix.netcom.com wrote:
>
>> Ken,
>>
>> Buy an HQ-170!  (easy to find, fixes all the 110 problems.)
>
> I have heard from multiple sources that the HQ-170 is a real sleeper and 
> an excellent buy. I
> have had my eye out for one for some time now. When fund become available, 
> I'll get one.
>
>>  Or, buy
>> an HC-10 and plug it into the HQ-110 (hard to find and very expensive,
>> but this was Hammarlund's answer to your questions).
>
> I have also been watching for an HC-10:all I have seen have sold for FAR 
> more than I would
> be willing to pay! :-)
>
>>
>> Or - something I have thought about for years - incorporate a decent
>> AGC into the 110 that works on CW/SSB.  Could be solid state.  That
>> would be a popular item for this particular receiver.
>
> I have a most excellent and simple AGC circuit which was published in 
> Electric Radio
> magazine some time ago. I intend to implement that as soon as I can.
>
> I also intend to completely rebuild the CW/SSB detector circuit. The one 
> in the HQ-110 quite
> simply stinks, although, given the state of the art at the time, it was 
> probably unusually good.
> It was most certainly better than the common diode detector and too-little 
> BFO injection that
> most had at that time. But considering what we have now, it REALLY 
> stinks!!!
>
> And the audio needs to be "tweaked", but that is simple and has already 
> been done.
>
>>  As for the
>> drift, etc., I just live with it on mine.
>
> According to an article I recently read on this subject, the author 
> discovered that Sylvania
> brand 6C4s and 6BE6s were FAR better with regard to drift and reliability 
> than any other
> brand. However, FINDING Sylvania branded tubes is difficult.
>
> I DO know, since I have a passle of 6C4s, that spending a couple of hours 
> trying various
> ones resulted in substantial reduction of drift. Trouble is, they don't 
> STAY that way for very
> long.
>
>>  For serious work on the
>> higher bands, I go to the Drakes and Collins.
>
> And I use any of several of my older rigs for that too, mostly Heathkits, 
> although some ex-
> military...or my TS-940SAT.
>
>> If you succeed with any upgrades, you would be a popular guy.
>
> Oh, I will succeed all right: however, the work involved may not be the 
> choice of many owners
> of the receiver. I tend to get stubborn concerning things like this. I see 
> potential, and then
> enjoy seeing just how far I can take that...probably to an extreme...but 
> it IS fun.
>
>>  There
>> are a LOT of 110s on the shelves out there.  They are relatively
>> small, good looking, and could be very usable with some basic
>> upgrades.
>
> And, in my opinion, they are actually a very good receiver. Mine exhibits 
> unusually good
> sensitivity, less than 1 microvolt clear up through 6 meters, and the 
> selectivity is quite good.
>
> The "Q-multiplier" works unusually well....when properly aligned...
>
> I very much wish I had had one of these when I was a new Novice back in 
> 1956 instead of
> the Heathkit AR-3 I did have...
>
> I used the HQ-110 and my original DX-35 in a Classic Exchange a few years 
> ago, and really
> liked the combo.
>
> Thanks for the notes and encouragement, and vy 73,
>
> Ken W7EKB
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