Restoring Old Paper Tape

jwsmobile jws at jwsss.com
Fri Jan 22 11:06:00 CST 2016



On 1/21/2016 10:48 PM, John Robertson wrote:
> On 01/21/2016 6:46 PM, Charles Anthony wrote:
>> <snip>
>>
>> -- Charles
>>
> Would it not be simpler to make an optical reader to handle  this job? 
> You need a light source and the correct number of opto transistors to 
> read the light from each hole. There is an index built into the tape 
> so that is easy to set.
>
> Something like this:
>
> http://hackaday.com/2014/05/02/reading-paper-tapes-from-scratch/
>
Did anyone get a schematic on the values the fellow used in the article 
on vintage-computer.com?  I see the photos, but didn't see any schematic 
showing what the actual circuit he found to work was. Also didn't see 
any real names.  Was the cited article anyone here?

thanks
Jim
> Of course my assumption above is based on tape that is still complete. 
> If it has holes or can't be pulled then, yes, photographing and 
> visually reading the dot patterns may be necessary, but that sounds 
> rather impractical if there are more than a couple of tapes to 
> transcribe.
>
> John :-#)#
>



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