[Boatanchors] Question About Receiver Design - Crystal Controlled Converters

[Bill Cotter]

Scott,

There are many design advantages in the Goodman design over the 
traditional HBR design. The ones that immediately come to mind are: 
1) Each converter can be optimized (tubes, parts values, AGC, 
layout, etc) for the band selected, 2) Converter band switching is 
less complicated than LC component switching on a multi-gang 
switch, 3) Converters can be build in the order of favorite bands 
as well as WARC and 160m, 4) Separate receive antennas and 
connections for each band. Some downsides are: greater parts count 
and cost, more metal fabrication, more space consumed, more power 
consumption if all converters are standing by, etc.

I am sure others will have advantages and disadvantages to share. 
It seems to me that a design decision would be down to personal 
taste and expectations.

73 Bill N4LG


At 09:08 AM 8/11/2022, whitebear1122 at comcast.net wrote:
>I'm looking at Byron Goodman's HB67 receiver in the ARRL Handbook 
>1965.  His
>design uses crystal controlled converters for 40-10 ahead of an 80 
>meter
>receiver.  I see this is single conversion on 80 meters as it 
>bypasses the
>converters, then double conversion on 40-10.
>
>
>
>What are the advantages and disadvantages of this configuration 
>over the
>other receiver designs where the local oscillator is changed to 
>mix 80-10?
>
>
>
>Thanks. 73 Scott WA9WFA
>
>
>
>______________________________________________________________
>Boatanchors mailing list
>Home: http://mailman.qth.net/mailman/listinfo/boatanchors
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:Boatanchors at mailman.qth.net
>
>List Administrator: Gary Harmon, K5JWK
>** For Assistance: gharmon at idworld.net **
>
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
>Message delivered to n4lg at qx.net