Fascinating little video of a 50KW AM transmitter station.

Reloadron

Joined Jan 15, 2015
7,855
This also took me back. Taken from the link:
Austin ring transformer at the base of a WMCA and WNYC transmitting tower in Kearny, New Jersey. The two interlocking rings are the primary and secondary transformer windings. The spherical objects directly below and to the right of the windings are a spark ball gap, for lightning protection.
I grew up with WMCA NY. Pretty cool stuff back to the 60s. :)

Ron
 

Thread Starter

Futurist

Joined Apr 8, 2025
721
This also took me back. Taken from the link:


I grew up with WMCA NY. Pretty cool stuff back to the 60s. :)

Ron
I had no idea the mast material itself was the radiator, and was standing on a huge insulator. I assumed the mast somehow supported some kind of vertical conductor.
 

Reloadron

Joined Jan 15, 2015
7,855
I had no idea the mast material itself was the radiator, and was standing on a huge insulator. I assumed the mast somehow supported some kind of vertical conductor.
Yes, I found that pretty interesting myself. Never gave it much thought till I saw that.

Ron
 

MisterBill2

Joined Jan 23, 2018
27,164
Yes, I found that pretty interesting myself. Never gave it much thought till I saw that.

Ron
With AM broadcast stations , of coarse they would use a vertical antenna. AND CERTAINLY the actual tower IS the vertical conductor. The width increases the capacitive portion of the load impedance, which makes matching it to the transmitter a bit simpler. AND it does not seem reasonable that the two interlocking loops are a transformer, other sources call them lightning protection devices.
 
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Reloadron

Joined Jan 15, 2015
7,855
With AM broadcast stations , of coarse they would use a vertical antenna.
Yes, had several around me. WHLI was just a mile or so away. A chunk of wire, a good copper pipe ground and a set of surplus WWII headphones with a 1n34 Germanium diode. Look Ma, no batteries. Many times as I past those antennas I never really caught on. Today at 76 now I get it. :)

Ron
 
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