1944 C-15A-Wire-5 Restoration

[Grant Bowker]

60~ might be for 60 Hz current (as opposed to 50 Hz that I believe was/is more common in Europe).

Standardization of frequency in the transmission grid seems to be more recent than I originally thought. Looking at Wiki, it states that parts of southern Ontario were on 25 Hz until at least 1946.

[David Herbert]

Wayne is correct but the ~ sign is indicating 'frequency', which nowadays uses the unit Hertz (Hz). The specification that it is AC current is covered by the written 'AC'. You can't use wavelength to describe AC electricity. Wavelength applies to radio waves and waves in the sea. The longer the wavelength, the lower the frequency is.

If the 60 referred to current it would have 'A' (for Amps) after it. DC current does not have a frequency so would not need that line of information.

David

[Gord Falk]

I do have an extra 110V plate if you want it, just provide me your mailing address.

I acquired 4 wireless boxes for my restoration project. 3 of them were shells only, but 1 had much of the wiring intact. I am leaving this this untouched until I transfer the wiring to the box I am restoring so I have a template where everything goes. I checked this box for the 12 Volt plate, there was no plate and no "shadow" of one ever being fitted.

The box I chose to restore was 4 owners ago the one Dave Dunlop started restoration on many years earlier.

Gord

[Robert Bergeron]

Thank you so much Gord . Email sent with my address . Hope my 5 -6 years of posting on this thread will help you with your own restoration .I have a few parts leftover if you need them , just ask . Bob

[Robert Bergeron]

Finished the cypher clerk table today with some aluminum trim and it turned out pretty much like original .Speaking of cypher , where could i get a few period correct cypher code booklets for the document tray below the table ?

[Robert Bergeron]

Here is the data plate of the Onan 10LS-6 generator for the box . That is the explanation for the 110 V 60 Cycle A.C. Caution plate above the outlet . It reads : AC 110 Volts / KVA 1 / 1000 Watts / 60 Cycles. Mystery solved .

[Gord Falk]

Hi Robert,

I have not received an email with your mailing address, maybe try to PM me.

Gord

[Chris Suslowicz]

Originally Posted by Robert Bergeron

Finished the cypher clerk table today with some aluminum trim and it turned out pretty much like original .Speaking of cypher , where could i get a few period correct cypher code booklets for the document tray below the table ?

There's not a lot of space on that table, so you're probably looking at a SLIDEX wallet and some cards, plus message pads and suchlike. (That assumes that the cipher office was not separate, of course, in which case it would just be used for booking messages in, out and through, with the signal office elsewhere.

You may want to have a read of Signal Training Volume V (1938), Signal Office Procedure, and Signal Training (All Arms), Pamphlet No.5, Signal Procedure 1942 or the later Radio Telephony 1943 + part 2 Morse Telegraphy. (Oh, and Pamphlet 8, Signal Office Working (1942 and 1944).

(Yes, it gets complicated!)

Best regards,

Chris.

[Robert Bergeron]

Thanks Bruce , you saved me a lot of frustration . Thanks very much for the references Chris. Shall do .