[GreenKeys] Model 15 60 WPM Gears Wanted

H.E.Robert ueoguy at yahoo.com
Tue Nov 28 21:29:40 EST 2006


Well to answer that question, I know that the Bell System, used M15 RO's 
for LIT or Line Insulation Test results in the old Step by Step Central 
Offices, these were automated routine testing of cable facilities done 
during the evening hours. The information was send to the M15 via a M14  
transmitter/distributor, that was wired directly into the test selector, 
ie, not paper tape.  They were supposed to proactively indicate 
developing cable troubles, wet, shorted, crossed, etc., but from my 
recollection, nobody ever looked at the print-out!!

Just Bob!

Charles Ring W3NU wrote:

> Doug Alderdice wrote:
>
>> Hi gang,
>>
>> I have a Model 15 RO unit here that I acquired about a year ago and 
>> have finally put power to.  I have discovered, though, that it is 
>> geared for 75 WPM.  All my mechanical TTY is 60 WPM, so this "won't 
>> play nice" with the other machines around here.  Well, I do have a 
>> machine or two with a gear shift, but it's just easier if everything 
>> can talk 60.
>
>
> What commercial service was that 15RO used in? I had believed that the 
> AP radio wire service upgraded from 60 to 75 circa 1970, but was told, 
> maybe here, that they went to 67 and not 75. I ask because that wire 
> service was a major user of 15RO's.
>
>
>
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