[Boatanchors] 1950s EF Johnson Catalog - Anyone?

[Richard Knoppow]

-----Original Message-----
>From: Glen Zook <gzook at yahoo.com>
>Sent: Jan 10, 2014 11:14 AM
>To: Bill Cromwell <wrcromwell at gmail.com>, "boatanchors at mailman.qth.net" <boatanchors at mailman.qth.net>
>Subject: Re: [Boatanchors] 1950s EF Johnson Catalog - Anyone?
>
>The Ranger II was introduced sometime in 1961.  The advertisements in the ARRL Handbooks are prepared usually in the third quarter into the fourth quarter of the previous year of publication.  As such, items manufactured in the previous year are generally advertised the following year.
>
>There are, of course, exceptions to this where a company has prototypes of a unit that is to be introduced the next year and has advertisements already prepared.  However, sometimes this backfires as in the 4-page, full color, advertisements by Collins Radio Company that appears in the 1955 ARRL Handbook.
>
>The 1955 ARRL Handbook introduces the 75A-4 receiver, the 30L-1 transmitter (NOT the later 30L-1 linear amplifier), and the 32W-1 SSB exciter.  Between the time the advertisements were submitted to the ARRL and published in the 1955 Handbook, Art Collins changed his mind and renamed the 30L-1 transmitter the KES-1 transmitter.  He also decided not to put the 32W-1 SSB exciter into general production.
>
>If one looks close at the earlier KWS-1 advertisements, the escutcheon on the transmitter still has 30L-1 nomenclature.
> 

     I am reminded of the early ads for the Hammarlund SP-600, I think this appears in the 1947 ARRL handbook but am not at home at the moment and can't look.  The ad features what looks like either a drawing or very heavily retouched photo.  It looks very much like the eventual production model but obviously has many differences.
.  The description of the circuits and tubes in the ad is completely different, all octal tubes and P-P audio and a calibrated band-spread dial.  Obviously, the project got completely re-designed before it saw the light of day.  It would be interesting to know the inside story.  I am sure there are many other examples of what you are talking about.