[R-390] R-390A New Mechanical Filter Construction

[Joe Foley]

All RIGHT!  That's IT!

I'm changing the Subject Line so we can find it later!

Joe



--- Roy Morgan <roy.morgan@nist.gov> wrote:
> At 12:37 PM 6/11/03 -0700, Joe Foley wrote:
> >Ok, so what's the recipe, ala R-390 style, for an
> LC
> >filter?
> 
> Would be coil winders,
> 
> Just look at the design and construction of the
> R-390 non-A IF 
> section.  Start there.
> 
> Thrree or four stages of very carefully designed,
> built, and tuned "double 
> tuned inductively coupled" IF amplifiers.
> 
> See Radiotron Designers Handbook, 4th Edition to get
> a start on the theory 
> and practice. Then see Valley and Wallman's RadLab
> book: Vacuum Tube 
> Amplifiers for stagger tune methods, if you wish.
> 
> Roy
> 
> - Roy Morgan, K1LKY since 1959 - Keep 'em Glowing!
> 7130 Panorama Drive, Derwood MD 20855
> Home: 301-330-8828 Work: Voice: 301-975-3254,  Fax:
> 301-948-6213
> roy.morgan@nist.gov --
> 
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