[Heathkit] Audio filter on HR-10B

[Jim Brannigan]

Sorry, fat fingers


----- Original Message ----- 
From: "Jim Brannigan" <jbrannig at optonline.net>
To: "TJRachwal" <tjrachwal at comcast.net>; <heathkit at mailman.qth.net>
Sent: Tuesday, July 04, 2006 11:04 AM
Subject: Re: [Heathkit] Audio filter on HR-10B


> 
> ----- Original Message ----- 
> From: "TJRachwal" <tjrachwal at comcast.net>
> To: <heathkit at mailman.qth.net>
> Sent: Tuesday, July 04, 2006 9:03 AM
> Subject: [Heathkit] Audio filter on HR-10B
> 
> 
>> Hello all,
>> After posting about mods for improving CW selectivity and other mods 
>> and receiving many responses I decided to follow the advice of adding 
>> and audio filter rather than making mods to the HR-10B.  It was a 
>> good move and a very good suggestion.  I opted for the SCAF filter 
>> from Idiom Press rather than the MFJ much cheaper filter.  The filter 
>> arrived within three days (Oregon->Mihigan) and in about 15 minutes 
>> was hooked to the HR-10B.  Wow!  The performance difference is 
>> amazing!  It wasn't "quite" the same as the 500 hz filter but leaps 
>> and bounds over the "wide as a barn door" front end in the HR-10B.  I 
>> could copy CW stations clearly that were down in the mud without the 
>> filter and not workable.
>> Since I didn't have an MFJ to compare it against I can't say the 
>> SCAF by Idiom press is any better but it has made the use of the 
>> HR-10B much more enjoyable and I look forward to many FB CW QSOs with 
>> the DX-60B, HG-10B and HR-10B.  By the way, an xtal calibrator 
>> (HRA-10-1) is on the way for the HR-10B; station complete!
>> HR-10B $80.00; SCAF wired and tested $140.00; enjoyable QSOs, 
>> memories of days gone by....priceless!  Thanks to all for their 
>> advice and help.
>> 73....Ted K8AQM
>> 
>> 
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>> 
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> _______________________________________________
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> $$ See the vintage area on the HCI web site - http://www.w9wze.org $$ 
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