Fw: [Boatanchors] Rangers, Elmacs and other BA's

windy10605 at juno.com windy10605 at juno.com
Tue Jun 22 16:45:49 EDT 2004


Phil,

>On CW this receiver is NOT the most stable critter around, but with the
Xtal filter
>it has pretty good selectivity and otherwise performs very well.  To
>hopefully help stability I may put a couple fans over it with a
>homebrewed thermostatic speed control (with the A/C running it doesn't
>seem to take a lot of temperature change to cause a shift in frequency
as
>the A/C cuts on and off). Even after a lengthy warm-up, if I monitor a
>long term CW signal (like W6ADO's code practice sessions) I get to chase
>the signal back and forth.  How did "old timer's" do it, one hand on the
>key and one on the tuning knob <grin> ?    

....I used to chase their signals on my old tube receiver but figured it
was only fair because they were chasing mine on their old tube receivers.
Best fix is to have all osc voltages regulated, keep it all cool to
minimize temp effect, and add mechanical stability. 

73 Kees K5BCQ


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