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- Freeze Frame
- Texas Flyer wanted
- Just a Year Too Soon
- WWII -- Replacing men with women at the railroad crossing.
- Yes, Icing
- You kids drive me nuts!
- NOT An Easy Job
- I wonder
- Just add window boxes
- Icing Platform?
- Indiana Harbor Belt abides
- Freezing haze
- Corrections (for those who care)
- C&NW at Nelson
- Fallen Flags
- A dangerous job made worse
- Water Stop
- Passenger trains have right of way over freights?
- Coal
- Never ceases to amaze me.
- Still chuggin' (in model form)
- Great shot
- Westerly Breeze
- For the men, a trapeze
- Tickled
- Sense of loneliness ...
- 2 cents
- Charm City
- What an Outrage
- Brighton Park
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Next Wave: 1920
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Washington, D.C., 1920. "National Radio School." Last seen here in an exterior view. National Photo Company Collection glass negative. View full size.
Knife Switch and Fuses
We have a similar knife switch and fuse arrangement on a wall in the basement of our 110-year-old house. It's no longer connected to anything, but it does give that nice "Dr. Frankenstein's Laboratory" feeling!
Good advice
In 1920 that would have been darn good advice. Hard to imagine now, but the radio boom was a bigger deal then, than the internet was in 1995. First ever development of a mass media market. It didn't "bust" until the 50s, at which point the same people could have gotten in on the TV boom.
Only Morse, no telephony.
Left to right, looks like
1/ Induction coil with adjustable spark gap at rear.
1/ Transformer with some kind of adjustable thing in the core gap?
3/ 2 volt lead-acid accumulator.
4/ Rotary spark gap for adding whiny sound to Morse code transmisions.
5/ Two inductors with ajustable coupling via hinge. Probably for adjusting the coupling of this entire transmitter-on-a-bench to an outside 500 yard long antenna.
On the architrave is a knife switch for jump-starting whoever is lying on the slab.
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