[Boatanchors] Hammarlund HQ-170A vs. National NC-300

rbethman rbethman at comcast.net
Wed Jul 16 14:48:37 EDT 2008


It's a case of YMMV!

I've used another's NC-300, wasn't enthused enough to pay for one.

I have an HQ-170A with original clock.  Don't know if it is the luck of 
the draw or what, but once turned on for around 30 min or so - I don't 
have to chase ANYTHING!  The audio IS pinched a "tad" for AM.

I agree with Carl on marrying an HQ-170 to either of the Collins 
animals, 51J4 or R-390A would be an abomination.

Wanting a receiver for AM, I either use an R-390A or my SP-600.  The 
SP-600 does CW and SSB VERY well.  R-390As will do AM and CW well - 
really aren't for SSB with HC-10 or CE Slicer.  Alex, AI2Q, has a great 
circuit for the R-390As.

You roll your own when it comes to picking receivers!  Each list seems 
to go through THIS particular topic on an irregular but consistent cycle.

Bob - N0DGN

Carl wrote:
> Yeah, and I didnt want to have to marry a HQ-170 to my R-390A or 51J4 
> either; that would be like mating a Yugo to a Ferrari.
>
> HC-10's can still be found for $75-100 and even the CE Slicer does a 
> very nice job on boatanchors.
>
> Carl
> KM1H
>
> ----- Original Message ----- From: "Revcom" <revcom at wbsnet.org>
>> Yea, but you don't have as many knobs and the cool pile of gray as with
>> an HC-10 and HQ-145A tied together!
>>
>> Rod
>> K0EQH
>>
>> ----- Original Message -----
>>> I've owned an HQ-170AC-VHF for over 30 years, and I've always been 
>>> happy
>>> with it.  It was designed as a CW/SSB receiver, with the audio passband
>>> tapered for minimum bandwidth required for communication purposes, so
>>> it's not likely to please the hi-fi AM aficionados.  The audio passband
>>> is actually designed to change with the audio gain setting - as 
>>> detailed
>>> in the manual.  If aligned correctly the receiver is stable and
>>> selective.  The VHF preamp uses low noise nuvistor triodes, and works
>>> quite well on 2m - you can listen to FM repeaters satisfactorily using
>>> "slope" detection with the AM detector.
>>>
>>> The IF circuitry in the HQ-170 and HQ-180 is essentially identical to
>>> the HC10 IF converter that sells so dearly on the auction sites.  I've
>>> always been amazed that you can generally get an entire HQ-170 receiver
>>> a lot cheaper than an HC-10.
>>>
>>> I have had problems with the heterodyne oscillator drifting for a long
>>> time after turn-on on 40 meters, but recently fixed this by replacing a
>>> capacitor in the resonator.
>>>
>>> W8KZW wrote:
>>> > I have the Hammarlund and an opportunity to acquire the National.  
>>> Will
>> be
>>> > used with my Ranger, primarily for AM.
>>> >
>>> > Which is the preferred radio and why?
>>> >
>>> > Thanks,
>>> > jeff
>>> > W8KZW
>>> >
>>> >
>>> > _______________________________________________
>>> >
>>> >
>>>
>>> _______________________________________________
>>
>> _______________________________________________
>>
>
> _______________________________________________
>

-- 
Bob - NØDGN



More information about the Boatanchors mailing list