[GreenKeys] Teletype Part Numbers

[ad7i]

Thanks John.  Great suggestions.

I have a piece of glass in the cabinet now, but it has a vertical hairline
crack.  it's been that way ever since I got it, but if I have the chance to
replace it a some point with Teletype glass then I'd like to do so.  But
I'll keep the plexiglass idea in mind as well for future use is need be.

I've never understood the concept of the pulling and holding magnets for
the M15.  I have two magnets in my M15, wired in parallel, but one of the
coils (the outside coil) is nicked and open circuit.  That means the second
coil is carrying all the current but producing the same amount of total
flux (since the current in one coil is double and the other is zero).  The
working coil doesn't even get warm at 60mA of continuous loop current, and
the TTY prints well.  I was thinking of replacing the open coil but I may
be better off just leaving things as they are.

Best,

Paul, ad7i





On Wed, Dec 9, 2020 at 9:31 PM w9ddd at tapr.org <w9ddd at tapr.org> wrote:

> Hi Paul, 1037B have 15 parts
>
>
> http://navy-radio.com/manuals/tty/jh/ttyman1/TeletypeManuals/model15/1037B-Iss6.pdf
>
> A ring crimp terminal with the shoe lace works for one (or both ends,
> can't remember for sure). One used to be able to find wide flat laces back
> in the day.  Another place to check would be a sewing supply shop, might
> find ribbon stock that works.
>
> Best bet on window is plexiglass you get at Lowe's or Home Depot.
>
> Selector magnet, there are two versions known, as pulling or holding.
>
>
> John, W9DDD
>
>
> On Dec 9, 2020, at 7:57 PM, ad7i <ad7i at ad7i.net> wrote:
>
> I'm trying to determine some part numbers for a Model 15 TTY.  Is there a
> Model 15 equivalent to this document for the M28?
> http://www.navy-radio.com/manuals/tty/1149B-6201.pdf
>
> I'm trying to determine the Teletype part number for
>
> a.  Model 15 selector magnet coils (circa 1956)
> b.  The glass panel in the upper front case
> c.  the ribbon thingy that's used to connect the circular spring device to
> the carriage, for carriage return.
>
> Also, does anyone have any suggestions on how I might come up with a felt
> pad for my Model 15 to sit upon?  Right now it sits directly on a piece of
> plywood that serves as the top of a homebrew TTY table, and functions as a
> terrific sound board.
>
> thanks,
>
> Paul, ad7i
>
>
>
>
>
>
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