[GreenKeys] [External] Local vs. Line mode tape reading: 33 ASR

Andy KN4UCL kn4ucl at gmail.com
Sun Feb 7 18:54:24 EST 2021


Thank you for the fantastic info and help, as usual!!
Andy
> On Feb 7, 2021, at 2:54 PM, WAYNE <teletypeparts at comcast.net> wrote:
> 
> 
> Doug and Andy,
>  
> Thanks for the good explanation Doug.  
>  
> My email changed the order of my pics but I think you and Andy can figure that out.  
>  
> Here are a couple more pics.  The colors for the Teletype Send and Receive may not be correct but the TR computer control card colors are.
>  
> The schematic says -15 volts but the relay card will work fine with -12 volts.
>  
> I have never looked into wiring up a standard 33 with the TR control so if you attempt it I will not be much help.
>  
> I used to remove the computer control card and make the UCC-6 and TR as it came from the factory but now I just move the one pin in Molex 4 from pin 7 to pin 11 to give the new owner the option of using the TR computer control by moving the wire back to pin 7.
>  
> Another pic of Molex pin order is attached.
>  
> 73,
>  
> Wayne
> KB1FDW
> <Digital reader-enable[1].pdf>
> <UCC 6 with Tape Reader Control Info.doc>
> <UCC-6 with reader control card Note red arrow.JPG>
> <Terminal Strip and Molex Info.JPG>
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