[Hallicrafters] sx-43 and sx-24 skyryderdefient----Twins----???

[Glen Zook]

Hallicrafters was primarily a manufacturer of
receivers, with transmitters being "secondary", during
the period before around 1955 (when the HT-30 was
introduced).  I don't really think that you can really
say that a particular transmitter was to be "paired"
with a particular receiver.

The HT-30 was similar in physical design to the SX-96
and then the SX-100 receivers.  Before the HT-30, and
post-World War II, Hallicrafters built the HT-17 and
HT-18.  The HT-17 was a 10 watt CW input transmitter
and the HT-18 was really nothing much more than a
"high powered" VFO running about 3.5 watts output at
80 meters and 2.5 watts output at 10 meters.  The
HT-18 did have NBFM (narrow band frequency modulation)
capabilities.

The HT-19 transmitter, introduced in 1948, is similar
in style to the SX-43 and might be considered a
"companion" transmitter as might be the HT-20,
introduced in 1953 (I have an HT-20).

For the SX-24, introudced in about 1939, Hallicrafters
did manufacture the HT-9,introduced in 1940, which
covered 80, 40, 20, and 10 meters (15 meters was a
post World War II band).  The HT-9 ran 100 watts input
on CW and 75 watts input on AM phone and used "plug
in" coils with crystal control.  The final amplifier,
according to my "sources", in the HT-9 was the 814. 
This tube is, if I remember correctly, a "beefed up"
807 (I was given a couple of these tubes when I was a
novice in 1959).

After about 1955, Hallicrafters did start producing
what can be called "matching" transmitters.  However,
before that date (and even for several years
thereafter), most amateurs "home brewed" their
transmitters rather than buying completed ones from
manufacturers.  But, most amateurs definitely used
commercially produced receivers.  Thus, the "demand"
for "matching" transmitters was really not present.

Glen, K9STH


--- 9500258 9500258 <dbanka at hotmail.com> wrote:

Does anyone know wich transmitters hallicrafters
intended to be used with the sx-24  and the sx-43 i
halve both and plane to get matching transmiters for
theme also was there a twin for the s-85 or was it
intended to be used as a stand alone receaver not
halving a matching transmitter like the hallicafters
twin's ?


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