[Heathkit] HR-10B

[Bwana Bob]

I have heard good things about the SCAF filter sold by Idiom Press.


			Bob WB2VUF

Tom NØJMY - AAR7FV wrote:
> If it were me, I'd pick up a cheapy audio filter like a MFJ CWF-2 at a 
> hamfest and get my selectivity there.  I have one I could part with if 
> you can't find one.
> I know a couple guys who replaced the half-lattice crystals in the 
> HR-10B's I.F. with a pair that were closer together (around 400 Hz. 
> apart) but in my opinion it wasn't worth the hassle.  The skirt 
> selectivity was still as broad as a barn door - not even in the same 
> ball-park as an audio filter.  Plus, if you like to listen to SSB, 
> changing the I.F. xtals distorts the audio pretty badly.
> 
> I don't think Doug has seen your post yet.  He got the article from '73 
> with the HR-10 mods from VE3HUR who was kind enough to scan them.  They 
> are now posted at the following URLs:
> http://www.hamnutz.com/w1eof/hr-10mods/  or
> ftp://bama.sbc.edu/uploads/
> 
> Best of luck, Ted!
> Tom
> 
> 
> TJRachwal wrote:
> 
>> Hello all,
>>     I just acquired an HR-10B to go along with my DX-60B.  I haven't 
>> yet given it the once over but was just wondering where I could find 
>> what mods others may have done especially with regard to CW 
>> selectivity.  Is there any direction/web site someone could point me 
>> too please?
>> 73 es tnx,
>> Ted K8AQM
>>
>>
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