[Hallicrafters] S-22 vs. S-22R

[Kenneth D. Grimm, K4XL]

> I recently received a note from a friend who said that he believed
that
> the IF freq listed in the Riders for the S-22, 465kc, was in error.
He
> said that he believed it to actually be 1600kc.  I realize that 1600
is
> the value for the S-22R, but can anyone confirm or deny the suggestion
> that it is also the actual value for the S-22?

Thanks very much to all who replied to this question.  The consensus is
that Riders actually made a mistake on the schematic (page 9-5) of the
S-22 in listing the IF Peak as 465 k/c.  The preponderance of evidence
indicates that this number was incorrectly placed on the schematic.
Evidence?  Contemporary advertisements for the S-22 indicated an IF of
1600 k/c.  The Dachis and Moore books do the same.  The Osterman book
says 465 k/c.  In fact the Riders schematic and the Osterman book are
the only indications that the IF was anything other than 1600 k/c.
Until someone can further illuminate this mini-mystery, I'm going to
assume that Rider made a mistake and Osterman used the Rider material as
his resource, further compounding the error.  Oh, one other bit of
evidence is that on Riders page 9-4 you will find 1600 k/c indicated on
the tops of the IF cans and page 9-6 indicates that for alignment of the
IF, the sig gen should be set for 1600 k/c.  That leaves page 9-5 with
465 k/c as an obvious editorial error.

Thanks to John Bartley of Stittsville, Ontario for calling attention to
the discrepancy and then providing much of the evidence when I didn't
immediately agree with him.

Ken K4XL
k4xl at arrl.net
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