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Old February 25th 04, 03:40 AM
Harold E. Johnson
 
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"Michael Black" wrote in message
...
"Jan-Martin Noeding, LA8AK" ) writes:
Found a source for 7360 and it is some interest among my friends for
using this tube in HF receivers, particularly for 80 and 40m
It was mentioned an article by W2PUL(?) in QST using a high current
twin triode as RF amplifier.
Have seen the SSR-1 rx schematics. Is some more notes available on
some sites for a modern version of receiver using these devices? I
suspect some parts of the receiver could be improved over the practice
used in the 60's
Any suggestions?

A couple, With Colin Horrabin's "H" mode mixer and the later switch mode
mixers available for well under a buck, the mixer has been removed from
being the concern it once was in receiver design. Since that topology, and
the 4066/312X/500X solid state mixers yield better linearity than the
following filters do, why return to the 7360? It was a fine mixer in it's
day. That day is LONG past. Try operating a 7360 in any close proximity to a
flourescent ballast. It will quickly disallusion you as to it's relative
worth except as a curiosity. Vacuum tube receiver technology and modern is
an oxymoron.

W4ZCB


 
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