[GreenKeys] Identify TU?

[groupsrichart at gmail.com]

I wonder if it may have been just a bare circuit board or a kit that was 
marketed. I found a picture (attached) of the same board where someone 
had it for auction on ebay.ie, the Irish eBay.

73,
Tim WS4V

On 11/27/2018 12:20 AM, W9DDD wrote:
> Good evening all,
>
> I spent days on google (really duckduckgo)trying to find docs on this. 
> Looked through a bunch of RTTY Journals of that vintage. (Boy that 
> Hoff guy wrote a lot of stuff).  Checked QST archives and 73.  Can't 
> get to CQ archives without buying a DVD I guess. Ham Radio can't be 
> found.
>
> Vintage early 60s.  I used this on 2 meters.  Apparently I later used 
> it to receive on HF since it appears I had a switch (no longer there) 
> and capacitor to get 170 or 850 shift copy.
>
> Not sure it's worth saving, but it has sentimental value.  Looks like 
> I robbed a pot from it somewhere along the line.
>
> As near as I can tell the full text on the lower right corner is "T-R 
> Teletype converter".  The toroid pretty much covers what I think is T-R.
>
> There's a logo of some sort between the toroids.  I have a better 
> picture of just that if you think it will help.
>
>
> ______________________________________________________________


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