where electrical power generation technology meets radio technology.

[AllaN01Bear]

what i am about to present to u is called a alexenderson alternator or generator that creates radio waves . this radio alternator was invented by Ernst Alexanderson .An Alexanderson alternator is a rotating machine invented by Ernst Alexanderson in 1904 for the generation of high-frequency alternating current for use as a radio transmitter. It was one of the first devices capable of generating the continuous... Wikipedia. there is only one type of these left in the world that is in operating conditon. it works on a frequency of 17.2 kc , and the startup of this machne is very elaborate and fascinating to watch. this last station is in Grimeton Radio Station in southern Sweden, close to Varberg in Halland, is an early longwave transatlantic wireless telegraphy station built in 1922–1924, that has been preserved as a historical site.
https://en.wikipedia.org/wiki/Grimeton_Radio_Station

[abqtommy]

1. Thanks for this. I worked for many years in the radio communications industry

(RF/1.6 Mhz to 30 Mhz, UHF and even Microwave) and studied the development of
these types of communication. But this is the first reference I've ever read concerning
this HF tech.

[AllaN01Bear]

3. yw. glad it helped . i am a ham and i eat this stuff up.

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[kysrsoze]

2. Somewhat related... wireless electrical transmission is coming.

https://medium.com/predict/how-far-are-we-from-wireless-electricity-94dbd48529a4

[AllaN01Bear]

4. my late dad always felt ," if tesla had his way, wed have domes evry 1/2 mile

and no wires . but jp morgan , edison and others got in the way.
big fan of tesla here .

[hunter]

5. I like the relays with the air blowing across the contacts.

The beast could output 200 kilowatts, but runs today at 80 kilowatts.

These days, if anyone cared to build one, a continuous wave solid state transmitter like that might fit in the box smaller than a washing machine.

[Nac Mac Feegle]

6. As a long term Radio Tech

That was a bit of a nerdgasm, seeing the old meters and the Vintage equipment that is lovingly maintained.