What can you tell me about a TELECHRON ELECTRIC CLOCK CAT. NO. 3915 CS SERIES "B"

Midazolam · August 30, 2022

TELECHRON ELECTRIC CLOCK CAT. NO. 3915 CS SERIES "B"

This clock has been on the wall in my ham radio shack since 1972. It was old then when I got it from the disbanding Flatbush radio club in Brooklyn New York

Here are some photos.

What can you tell me about this piece of history?

Edited August 30, 2022 by Midazolam

Midazolam · September 3, 2022

53 views and no comments.

I must have hallucinate the clock. It just does not exist.

KarlvonKoln · September 3, 2022

I was rather surprised too. I was one of those who viewed the post, but since I know nothing about them, I couldn't think of a comment. I thought surely someone else here has encountered them, perhaps even worked on them, and will comment soon. But maybe not.
I can say I've heard the name uttered. But the only electric clock I have is a more common "United". I can only wish you luck with Google.

dadistic · September 3, 2022

Well, if you'd like to read more about the Telechron electric clock, you could try here-

https://www.telechron.net/main.htm

NAWCC also has some electric clock afficianado's, I'm sure you'd find someone there who knows all about them

Cheers!

Edited September 3, 2022 by dadistic

Geotex · September 3, 2022

A wide variety of Telechron styles were made, including wall clocks, alarm clocks, timers that could be used to turn on and off household electrical items and others. Your wall clock with a GMT hand is something I haven't seen. I have one of their wooden-cased timer clocks (older) and also the one pictured below, a more modern alarm clock which is mounted in polycarbonate with brass trim (I need to clean and polish this little guy some day). The red dot on the dial of mine is an indicator that the power has been interrupted. It is held up by an electromagnet but drops down if the power goes out, until you reset it. An early version of today's flashing clock displays meant to let you know that the time displayed might be wrong.

The claim to fame was that the company came out with some of the first electric clocks that didn't have pendulum, balance or other internal oscillator but relied on the 60 Hz signal from the AC transmission line to drive the motor at a constant and appropriate rate. So your clock was as accurate as the local power plant distribution maintained their frequency. In order to help out on that end in the early days, the company also set up a chronometer-type master clock system in the power plants that could help the utility tweak their output to be correct.