WW&F Railway Museum Discussion > Work and Events

B&SR Box Car 56 - Official Work Thread

<< < (2/37) > >>

Mike Arnold:
What the difference between a mag phone and sound powered phones?
Mike

John McNamara:

--- Quote from: Mike Arnold on October 27, 2020, 08:06:35 PM ---What the difference between a mag phone and sound powered phones?
Mike

--- End quote ---
To be honest, I'm not really sure. I know that magneto phones use a local battery (a couple of D-cells) to power the microphone, and they signal each other by sending a 20 Hertz 90-volt signal to ring the bells, said 90 volts being generated by a hand-powered magneto in the phone (hence the name). With minor modification, magneto telephones are fully compatible with conventional telephones but rarely used that way; I doubt that's true with sound-powered phones. Now you've sent me on an internet search on sound-powered phones...

Bill Reidy:
Here's the current state of B&SR boxcar 56, as seen last Saturday, October 24th.



John Kokas:
I certainly hope that #56 will get proper tarp coverage if its not going into the shop for rebuild this winter.  BTW - do we have ownership of this car now or is it on loan from MNG ???

Jeff Schumaker:
Interesting hodge-podge of material holding(?) it together. is any of the interior bracing salvageable?

Jeff S.

Navigation

[0] Message Index

[#] Next page

[*] Previous page

Go to full version