Random pictures thread

-
F75C06CE-C42E-436A-94D7-B95B421CF303.jpeg
 
Whazzit, some kind of dynamo?
7b1a1a90-028d-462c-881f-c47e51773ea9-jpeg.jpg


Yep, a dynamo

Dubya-dubya-dubya says it's women at BASF gas powered powerhouse, 1917. You may know that the number of poles and RPM of the device, whether motor or generator, determines the frequency, IE what we know as 60hz line power. It wasn't always that way, even all around the U.S. and certainly not across the world. But moreover, there used to be huge hi power RADIO FREQUENCY transmitters, that were mechanically driven just as these are here--------just more poles generates higher frequency.

This.................

alexanderson_alternator.jpg


The Alexanderson Transmitter design dates back to around 1910, before any of the newfangled tube technology had been invented. Weighing in at around 50 tons, the monster powering the Varberg Radio Station is essentially a high-speed alternator — a generator that puts out 17.2 kHz instead of the 50-60 Hz that the electric companies give us today.

Now 17.2kHz (back then, kc, or kilo-cycles) is not very high, barely out of the audio range and into the RF range. But it IS RF

This is quite a read if you get time

Grimeton Radio Station - Wikipedia



 
Last edited:
Here's a nice one
I installed a few extra outlets on the podium at Church
(That railing you see on the left hand side is almost in the middle)
it is just big enough to army crawl underneath there so I volunteered my boy to crawl in there to run the wiring while I did the hook up from top level, where you can see and breathe

(That jumpsuit is one of four I keep in the shed, the kids and thier friends have to wear them when they ride the 4 wheelers)

Resized_20200309_181636.jpeg
 
Some random stuff I got this week, many will need to find a new home...the transmission will be a spare for my 66

E2965248-FBBE-4D6B-B45F-2BB0E0F98215.jpeg


39EF069F-5B60-464F-ABF0-91D6FF0CF6D2.jpeg


85B07D5B-9235-4631-B2E9-B73D6985B648.jpeg


1F42478C-3B56-44B9-8B09-4CF9D6C858A5.jpeg
 
-
Back
Top