[GreenKeys] Non-Standard Gears and Speed

[John Vendely]

Hey Ron,

I've seen several U.S. military surplus TT-76s with 50 baud gears 
installed.  The one in my GRC-122E shelter even has a decal affixed to 
the top of the case advising that the 50 baud gear set is installed (I 
subsequently installed 45 baud gears).  The TT-4s I've had came with the 
75 baud gears installed.

73,

John K9WT

On 6/23/2019 1:40 PM, Ron Boltz wrote:
>
> About 10 years ago I got a free TT-76(*) from a local railroad museum 
> that was cleaning house. They had several of those and TT-100’s. It is 
> really nice and clean. Brought it home, oiled it up and it ran error 
> free as a stand alone unit.  I wanted it as a spare for my RATT 
> shelters so it was stored.  Last week I got it off the shelf, oiled it 
> up and it still ran great so I put it in the local loop in the shack.  
> The other machines could not copy it nor could the TT-76 copy the 
> other machines.  Checked the motor speed and it was good at 3,600 
> RPM.  Opened up the gear box and found 50 baud, 414 OPM.  That’s 69 
> WPM, clearly not a standard.  The spare gears are standard at 600 OPM, 
> 100 WPM.  Anyone ever see this speed?  Don’t know if the railroad used 
> these machines or not.  I lowered the motor speed 9% with the governor 
> and it works well in the loop but would like to find gears.  I never 
> see Kleinschmidt parts for sale.
>
> Ron Boltz
>
> K3TZJ
>
>
>
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