[Milsurplus] [RCA] SRR-13 Article

[Hubert Miller]

I think the word is “uncommon”, not “rare”.  The R-808 has only LC selectivity at IF. I think the narrowest is 3 kHz at -6db, something like that. 

On CW narrow there’s also an audio filter, like with the SRR. I consider this receiver as 2nd place to the SRR because of 1- the 16-32 single swath

high band, and 2- the IF alignment requiring removal of the IF section. I wonder if people who bought this receiver, knew that when they bought

it.

-H 

 

From: Milsurplus [mailto:milsurplus-bounces at mailman.qth.net] On Behalf Of antqradio at sbcglobal.net
Sent: Thursday, August 4, 2016 9:23 AM
To: Milsurplus at mailman.qth.net; RCA Equipment <rca at mailman.qth.net>
Subject: Re: [Milsurplus] [RCA] SRR-13 Article

 

Hue

I haven't seen a response to your query.  Perhaps both are rare enough that no one has the operating experience to compare them?

 

To start the ball rolling specification wise, the R-808 is single conversion below 8 mc, has a 2nd crystal controlled above 8 mc.  Second IF is 455 kc, not sure if there are selectable IF bandpass filters, will have to check the manual to be sure.

 

SRR-13 is double conversion on all bands with three L/C pass band filters at the beginning of the 200 kc second IF.  First IF is 1600 kc.  The SRR-13A has the two narrow 200 kc filters replaced by RCA designed mechanical filters but the broad filter remains L/C.  Filter bandwidths are approximately, 1, 3 and 8 kc centered on 200 kc.  There is also an audio filter that has a pass band of 825 to 1175 cycles which is switched in for the A1 sharp passband position.

 

Jim            

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