[Hallicrafters] Hallicrafters SX-88

[Joe Connor via Hallicrafters]

Jim, Phil Nelson has an excellent article on restoring an SX-88 that contains some of the information that you are seeking.
Joe Connor

Hallicrafters Model SX-88 Communications Receiver (1954)

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| Hallicrafters Model SX-88 Communications Receiver (1954)Hallicrafters Model SX-88 Communications Receiver (1954)                             Owners Manual  QST Review What's the finest Hallicrafters radio ever m... |
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     On Thursday, July 16, 2015 8:22 PM, Jim Liles <hallicrafterssr2000 at k9axn.com> wrote:
   
 

 Good evening Roy,

I have some questions regarding the SX-88.  

First have you done a sweep analysis of the 50Kc I.F. system or do you know of someone who has?

Can anyone confirm that the 50Kc I.F. charts in the book are correct?

Looking at the design I would expect the shape factor for the system to be close to 2/1 which is very close to the crystal filters of that time.  Is that a correct analysis?

Has anyone measured the Q of the first, second , and fourth 50Kc transformer pairs as well as the third pair?

More but sure would like to hear from a person who has had one on the bench.  That radio is probably the most enigmatic of the Hallicrafters bunch.  Always wanted to put one through sea trials.

Kindest regards Jim K9AXN  
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