[GreenKeys] Model 19 gears

[Kevin H. Phillips]

OK, I counted the teeth on the wrong gear.  Sorry about that. So, what I 
have is the 7T pinion and 30T drive gear so it *should* be 60wpm.  Maybe 
there is something sticking that is causing the problems I'm seeing.  
I'll try to work on it a bit more today and see what happens.


Thanks,

Kevin


On 7/24/2018 9:56 PM, Jerry Murphy wrote:
> You mention that the motor pinion has a number stamped on it of 74919LS.
> Teletype Bulletin 1114 shows the 74919 pinion (7T) and the 74920 gear (46T)
> being used with a 60 Hz sync. motor for 40 WPM service.  This seems to be
> an unlikely setup.
>
> Here's the link to the manual on Nick England's website:
>               http://navy-radio.com/manuals/tty/1114B-4309.pdf
>
> The gear chart is on page 39.
>
> Jerry Murphy
>
>
> -----Original Message-----
>> From: "Kevin H. Phillips" <kh-phillips at 9-5usa.org>
>> Sent: Jul 24, 2018 3:16 PM
>> To: greenkeys at mailman.qth.net
>> Subject: [GreenKeys] Model 19 gears
>>
>> I have a Western Union Model 19 set that has been sitting around for 3-4
>> years and I finally had some time to tinker with it.  The table is a
>> model 7904-A.  It looks similar to this item on eBay except it has no
>> reperforator or call unit and is in *much* better condition:
>> https://tinyurl.com/y82xlg9r  (Item No. 323223096071).
>>
>>
>> My main question right now is does someone have a list of the various
>> gears available?  The parts manual I have that is supposed to have a
>> gear chart is missing that one page (naturally).
>>
>>
>> The pinion gear on the motor appears to be #74919LS.  I can't see the
>> numbers on the gear on the main shaft.  I've tried copying ITTY with it
>> but it just types gibberish mostly so I'm guessing this was either a
>> Telex machine (like the one on eBay) or it was set up for some other
>> speed than 60wpm.  It also seems to have been set for receive only
>> because I can't get keyboard functions to work.
>>
>>
>> If this machine was used in Telex operation, then I guess the next
>> question would be if it could be used with i-Telex like it is?
>>
>>
>> Thanks,
>>
>> Kevin
>>
>> W5TTY


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