[Milsurplus] E. H. Scottr RCH or SLR-F?

Kenneth G. Gordon kgordon at moscow.com
Tue Jun 1 13:46:02 EDT 2004


Phil Atchley wrote:

> Hmm, even though it's a superhet, not regen, I wonder if that explains why the
> BC-342 is built the way it is.  E.G. Lots of shielding and two RF amplifiers
> before the mixer?  I know it was more or less "fixed station" rather than
> shipboard, but I suppose that it could be anticipated that it might see sea
> duty.

There are two reasons: 1) much better image rejection with a 455 Khz 
IF, and 2) most tubes of the time used for RF amplifiers do not work 
well at frequencies above 20 Mhz without extra amplification to 
overcome the tube losses.

Ken W7EKB


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