[ARC5] The Regenerative Superhet - Armstrong meets Armstrong.

[Leslie Smith]

To all:

This topic is fascination but has little to do do with Aircraft Radio
Corporation or ARC-5 sets.  I will conclude by saying articles in Frank
Jones Radio Handbook and other material found in the National Library of
Australia (NLA) reflect a 'feeling in the air' of adventurous experiment.
The Wireless Institute of Australia (WIA) - the Australian equivalent of
the ARRL - held exhibitions in Sydney Australia, as we see here:

Sydney's 1937 Amateur Radio Exhibition.
> "So successful was the 1936 Amateur  Radio and Short-wave Radio
> Exhibition  that there wasn’t half enough room for  everything that could
> have been shown.   For the 1937 show the N.S.W. Division  of the Council of
> the W.I.A. has decided  to hire Sydney’s Town Hall.
> On this occasion the public will be  able to see first-class amateur
> stations in  action, working ultra-short waves as  well as the regular
> short-wave DX
> channels. There will be constructional  competitions in short-wave
> receiver de-signing, and good prizes will be offered  in all sections."
>

The Jones super-gainer/superhet is mentioned in the same paper.  The design
principle in the 1936 Radio handbook appears to pre-date the Polish A and
AP underground sets.  In the Polish sets the octal 6K8 replaced the 6 pin
6C6.  The chronology of development is unclear to me.  I understand Drake
designed (or at least began the design) of what became the SCR-series sets
in 1934, but  octal tubes didn't appear until 1935.

Anyway, as I wrote before, this topic belongs in another place, not the
ARC5 mailing list.

 73 to all

 Leslie
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/arc5/attachments/20230116/de7ff42b/attachment.html>