Hello Herb and all,
In the early 70 I was on one of my many trips to DL land. My friend DL2VP, now
SK, was an engineer at DW-TV and German Radio
on 1584kHz. The final was 12kV at 80 Amps. 960kW input. The vacuum variables
were bigger than trash cans.
The power-supply took up a room about 12 X 15ft. They had yellow lines to stay
within.
I guess we could have put it on 160...
73 Price W0RI
Thanks,
Herb Schoenbohm, KV4FZ
amps
On 9/12/2013 5:05 PM, Donna Halper wrote:
> I have heard a number of similar stories, some of which seem to be legends or
> perhaps based on some kernel of truth that got exaggerated. I don't know for
> sure about the one Herb mentioned, because I find no reporting on it in any
> of the sources I've checked. We do know that in 1938, KDKA was one of 12
> stations that applied to be a super-power station, like WLW, which had
> temporarily been allowed to use 500 kw. But KDKA withdrew its request in
> mid-1938, and settled for operating at 50,000 watts. In fact, as of 1940, the
> Pittsburgh AM station was one of the handful of stations broadcasting with
> 50,000 w. In mid-1942, Westinghouse advertisements still stressed the 50,000
> watt transmitters in use by KDKA and other stations in the group.
>
> The only record I can find of high-powered broadcasting is on the
> _short-waves_-- requests for super-power were received in 1941, and the FCC
> permitted about 12 stations to utilize this high power. And in 1943, it was
> widely reported that high-powered shortwave stations were beaming
> pro-American news over to Europe, and Westinghouse stations were among the
> high-powered broadcasters doing this-- but there was no mention of KDKA in
> the list of shortwave stations involved; WBOS in Boston was one that did
> receive some press for this activity. That doesn't mean the story is false--
> it just means that all of the sources to which I have access don't mention
> it: I even looked for reports by well-known radio columnists who generally
> wrote about such things. Perhaps someone with access to legal databases
> (which I do not have) can check to see if a lawsuit was actually filed, or if
> this is the stuff of legend. And just as an FYI, we also know there was a
high-powered station with 250,000 watts as far back as 1925-- the Tropical
Radio Telegraph Company put it on the air in Hialeah, Florida.
_________________
Topband Reflector
_________________
Topband Reflector
|