[GreenKeys] Model 15 sort of

[Larry Tighe]

Howdy George,

I'm going to take some pix and post them on my site.  It does have some 
things I've never seen in a 15....a bar with slots that sez STOP, LF, LTRS, 
BL, SP, TAB, BELL, GIG, CR.

This I've never seen before in a 15.  I don't have any idea what BL means.

OK, thanks for the input....pix tomorrow when my nerd son can post them :>)

Lar
----- Original Message ----- 
From: "George B. Hutchison" <w7tty at readysetsurf.com>
To: "Larry Tighe" <larryradio at worldnet.att.net>; <greenKeys at mailman.qth.net>
Sent: Sunday, May 06, 2007 19:36
Subject: Re: [GreenKeys] Model 15 sort of


> Larry and GreenKeyers - - -
>
> From what little you have described I am wondering if that model 15 you 
> have might not be a Lorenz Model 15. RCA Communications did use a number 
> of the Lorenz machines.
>
> In the 1930's (check me on this please, My Haynes), Teletype licensed 
> Lorenz to make a lot of their stuff exactly the same as Teletype.  If you 
> look at some of the range-finders you can see on some of the Lorenz-made 
> German Cryptographic equipment you will see that they are exact copies. I 
> cannot say whether or not the screw-threading was the same as American 
> SAE, but I would bet they were.
>
> Also, the  mention of the "strange green" color is also an indication of 
> possible Lorenz background.
>
> The German keyboards had four rows of keys, as opposed to three rows on 
> Teletype Corp stuff. The top row was numbers.
>
> Check the vanes on the typing unit you acquired. Teletype corp vanes were 
> all solid. The Lorenz vanes had slots punched or milled in them to reduce 
> the mass of the vanes so that the selector lever springs in the selector 
> would not have to move so much mass. This enabled them clever German folk 
> to run model 15's at 100 WPM with more success and reliability than we 
> over here could do.
>
> A neat feature found in many Lorenz 15s was that there was often a 
> perforator/reperforator driven by the selector which nicely punched a tape 
> of the incoming signal, or whatever the 15 was printing at the time.
>
> You might have a relative rarie, Mr Tighe.
>
> 73,
>
> George - W7TTY
>
>