[Hallicrafters] [Boatanchors] Tuning a Boatanchor?

[Bob Macklin]

I have several ham band only receivers. The NC-109 was the first new 
receiver I bought in 1960. I used it for 12 years before stupidly selling 
it.

I can spot the ham bands with the crystal calibrator.

Bob Macklin
K5MYJ
Seattle, Wa.
"Real Radios Glow In The Dark"
----- Original Message ----- 
From: <manualman at juno.com>
To: <macklinbob at msn.com>
Cc: <Hallicrafters at mailman.qth.net>; <boatanchors at mailman.qth.net>
Sent: Sunday, November 07, 2010 11:55 AM
Subject: Re: [Boatanchors] Tuning a Boatanchor?


> If you care little about accurate general coverage dial accuracy, set the
> general coverage pointer in the center circle of the ham band of
> interest, and then just calibrate the ham band dial. Of course, a micro
> touch of the general coverage knob will probably throw it off. The 100
> KHz calibrator can also help here for "pinpoint" accuracy on the ham
> bands. If the interest was only in the ham bands and accurate dial
> calibration, a ham band receiver probably would have been a better
> choice.
>
> Pete, wa2cwa
> http://www.manualman.com
>
> On Sun, 7 Nov 2010 11:40:13 -0800 Bob Macklin <macklinbob at msn.com>
> writes:
>> I have spent the past 2 days trying to improve the tuning on my
>> NC-109,
>>
>> If I use the standard method of tuning the inductor on the low end
>> and the trimming capacitor on the high end I can make those points
>> work. But he center of the dial will be off.
>>
>> My interest is in the ham bands. Is there anything wrong with just
>> tweaking the tuning to put he ham bands where they should be.
>>
>> The National manual makes no mention of high side or low side
>> injection? I is there a standard? I know some receivers use high
>> side injection on all bands except the highest band. I think that is
>> how I received this receiver.
>>
>> Bob Macklin
>> K5MYJ
>> Seattle, Wa.
>> "Real Radios Glow In The Dark"
>