Anybody like Electrical Stuff?

[x-ray]

Norris Dam in Norris Tn.

Crummy iPhone photo.

 

[Out to Lunch]

Thanh Da & Ba Chieu Market, Saigon.

 

[Rayt]

Lahore, Pakistan
MP 35mm Summilux Asph

 

[markjwyatt]

Utility Workers by Mark Wyatt, on Flickr

 

[markjwyatt]

glowing filaments by Mark Wyatt, on Flickr

 

[Rob-F]

Feel free to post in this thread!

SD14 morning shot. Street power pole with Westinghouse 3-wire 120/240 transformer for my country home:

View attachment 4818803


I used Auto-Bracketing and picked out this early morning hand-held shot.

I like it!

 

[fiddle]

50 Kw Am transmitter

one of the towers for said transmitter.

 

[raydm6]

Canon S90


Westford Radio Telescope
(MIT Haystack Observatory - Westford, Massachusetts)

Westford Radio Telescope - MIT Haystack Observatory

Cryogenically cooled frontend Fiber-optic radio frequency (RF) downlinks and distributor Up-down converters (UDCs) ROACH digital backends (R2DBEs) Mark 6 recorder with expansion chassis Field control system Hydrogen maser frequency standard

www.haystack.mit.edu

 

[Out to Lunch]

We are very well organized, Saigon.



Old and hyper-organized, Geneva.

 

[AndersG]

The mechanic pre-electronic transmitter in Grimmerton, Sweden. July 2022.
Canon EOS 30D, Canon 28 mm f/2.8 at 1/30 sec, f/4 and ISO 400.
Link to image.

 

[AndersG]

The antenna of the mechanic pre-electronic transmitter in Grimmerton, Sweden. July 2022.
Canon EOS 30D, Canon 50 mm f/1.8 at 1/2000 sec, f/5.6 and ISO 100.
Link to image.

 

[jankap]

Transmitter, OK. At what frequency does it transmit?
And what does the device in post #30 do?
Transmitters can need a lot of power. I don´t remember exactly, but it could be 100s of kilowatts.

 

[halvmesyr]

The antenna of the mechanic pre-electronic transmitter in Grimmerton, Sweden. July 2022.
Canon EOS 30D, Canon 50 mm f/1.8 at 1/2000 sec, f/5.6 and ISO 100.
Link to image.

Nice! I've been there once. iirc they transmitted long wave across the atlantic from there back in the day?

 

[AndersG]

Transmitter, OK. At what frequency does it transmit?
And what does the device in post #30 do?
Transmitters can need a lot of power. I don´t remember exactly, but it could be 100s of kilowatts.

It is the transmitter. The large wheel is generating the very precisely calibrated frequency (17.2 kHz probably?) with a large current for sending out from the very large antenna. It is driven by an electrical motor outside the view to the right. The whole machinery was very large - the building held two transmitting machines of that type in the beginning (1920th).

The house for the mechanical pre-electronic transmitter in Grimmerton, Sweden. July 2022.
Canon EOS 30D, Canon 50 mm f/1.8 at 1/2500 sec, f/5.6 and ISO 100.
Link to image.

See Grimeton Radio Station - Wikipedia for more information.

Yes, halvmesyr, it was made for transatlantic radio communication.

Cheers,
Anders

 

[jankap]

See here: Längstwellensender Grimeton – Wikipedia
or here: Längstwellensender Grimeton - Geschichte der Radiostation Grimeton › Weites.Land

Wavelength 17,441 meter = 17.441 km!
It was used for telegrams (morse), stock market. Also - later on - for the communication with submersed submarines.

 

[Kai-san]

Shot with a Leningrad RF + Jupiter 8.

 

[neal3k]

ActionSampler Power Pole by Neal Wellons, on Flickr

Power For Mac - Holga by Neal Wellons, on Flickr

Figure Me Out by Neal Wellons, on Flickr

 

[Deleted member 82967]

Just down the street from our T junction. 3-phase star 16kV I think.

 

[x-ray]

The first is an MRI, second a laser, third an x-ray fluoroscope, the forth is a carbon arc furnace and the last cross processed E-6.

 

[Taipei-metro]

Arcadia, Los Angeles County


Img by Taipei-metro

Nikon ApsC dSLR,
Nikkor 28mm F2.8 Lens made in Japan ( 42mm 相當 ), File reduced fitting
r F f