[GreenKeys] [AWA] We have this Model 31 Teletype and need the control box...
Duncan Brown
duncanancy at earthlink.net
Fri Nov 15 09:29:55 EST 2013
Ed,
See RTTY magazine, October 1962, p8 (you shuld be receiving it today)
Duncan
On 15-Nov-13 00:25, COURYHOUSE at aol.com wrote:
>
> I am still confused about the holding and the pulling magnet
> selector..
> any quick visual guide for the two so I can compare units I have here!>?
> Thanks in advance Ed#
> In a message dated 11/14/2013 10:18:50 P.M. US Mountain Standard Tim,
> WA5CAB at cs.com writes:
>
> The second or third Model 15 I ever had was equipped with a
> holding magnet selector. I'm not sure but think that it came from
> a surplus dealer in Shreveport, LA, who would likely have gotten
> it from Barksdale AFB. I don't recall any decal, though. Of
> course that would have been more than 45 years ago
>
> In a message dated 11/14/2013 15:03:34 PM Central Standard Time,
> jhhaynes at earthlink.net writes:
>> Note that the original Model 14 and Model 15 equipment with pulling
>> magnet selector has the selector coils in series for 60MA operation;
>> 20MA is not an option. Model 14, 15 and later equipment with the
>> holding magnet selector allows the coils to be in series for 20MA or
>> in parallel for 60MA. I've seen military Model 15s with a decal on
>> the copyholder saying they have been refitted with different magnets
>> that can go either series or parallel, and the picture on the decal
>> shows the cylindrical magnet coils that belong to the pulling magnet
>> selector. But I've never encountered a machine that actually has the
>> special coils, in spite of the decal.
>
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