[R-390] Staggertuned IF Question: Visual Alignment Doc

[Bill Cotter]

Does anyone have this Army document available in pfd format to 
share? It might be a good document to place in the common access 
web pages.

73 Bill N4ALG


>If you can arrange a sweep generator/detector system to do your 
>tuning, you will be able to see the effect of your tuning 
>experiments.  An Army publication ST 32-152.pdf, entitled "Visual 
>Alignment of Radio Receivers R-390/URR and R-390A/URR" is a good 
>place to start.  Go to: http://www.r-390a.net/ and look under 
>References, in the Army section. (It describes sweepers that do 
>not have retrace blanking, so adaptation of the methods is needed 
>for more modern equipment.) There have been articles published on 
>how to build sweep generators.  I don't know if FAR Circuits has 
>such a board/article available, but someone should check their web 
>site and report.  But plenty good enough sweep generators are 
>available on the surplus market.
>
>These topics of stagger tuned IF strips and sweep alignment 
>methods are both very interesting to me, though I have not yet 
>done very much experimenting.  When my Radio Emporium is set up at 
>my new QTH, I certainly will.
>
>Roy
>
>
>- Roy Morgan, K1LKY since 1959 - Keep 'em Glowing
>13033 Downey Mill Road, Lovettsville, VA 20180
>Phone 540-822-5911   Cell 301-928-7794
>Work: Voice: 301-975-3254,  Fax: 301-975-6097
>roy.morgan at nist.gov --
>
>
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Bill Cotter, N4ALG             E-mail: n4alg at qx.net
173 Carolyn Lane               Home: (859) 887-5563
Nicholasville, KY 40356-9340   Work: (859) 323-6474

ARRL   ARCI #9878   QRPl #1646   QCWA #29393   FISTS #4535
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