Little did Ham radio operators know
in April of 1941 when they were enthusiastically buying equipment for their shacks
that a year later the Federal Communications Commission (FCC) would ban them from
broadcasting from their transmitters. This advertisement for a high-end Hallicrafters
receiver appeared in the April issue of Radio News magazine. Part of the
feature definition includes "calibrated bandspread inertia controlled," and "micrometer
scale tuning inertia controlled." I'm not sure what the "inertia controlled" part
is, unless it refers to how massive metal disks were sometimes installed inside the
chassis on the tuning shaft in order to give a more solid feel to the control knob,
as well as to enable the dial to be spun and released to rapidly move through a
large distance between adjustment points. If you know for sure what it means, please
shoot me a note (but don't just shoot me).
* War Comes!, January 1942
re FCC Potentially Shutting Down Amateur Radio During WWII November, 1940
News Items from F.C.C., December 1940 - January 1941 National Radio News;
Hallicrafters Radio - End of
War in Sight, November 1944 Radio News;
September 1947 QST
Allied Radio: Hallicrafters Receivers
Hallicrafters on Easy Terms!
See Allied's Free Spring New 1941 Catalog!
Compare These 1941 Features of The Hallicrafters SX-28
15 tubes - two stages preselection - calibrated bandspread inertia controlled
- micrometer scale tuning inertia controlled - tone and AC on-off-beat frequency
oscillator - AF gain - RF gain - crystal phasing - adjustable noise limiter - send-receive
switch - AVC-BFO switch - bass boost switch-phono jack - 80, 40, 20 and 10 meter
amateur bands calibrated - wide angle "S" meter - band pass audio filter - improved
signal to image and noise ratio - push-pull high fidelity, audio output - 6 step
wide range variable selectivity - improved head-phone output.
The Sky Buddy Model S-19R
The Sky Buddy covers everything on the air from 44 mc. to 545 kc. including the
10, 20, 40, 80 and 160 meter amateur bands. Employs the same electrical bandspread
system used in higher priced Hallicrafters Models. Controls are arranged for maximum
performance with minimum effort. Amateur Net, $29.50 $4.43 Down, $4.43 Monthly for
Amateur Net, Less Speaker, $159.50 $15.95 Down, $12.68 Monthly for 12 Months
The Sky Champion Model S-20R
The best value ever offered in the communications field. 9 tubes - 4 bands -
tunes from 540 kc. to 44 mc. - has all the essential controls for good amateur reception
- built-in speaker - provision for operation from batteries or vibrapack.
Amateur Net, $49.50 $4.95 Down, $5.90 Monthly for 8 Months
Send for This
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money. There's no red tape at Allied! Send for the Catalog Today!
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Posted December 11, 2020