Wanted, Papertape Reader for Archiving Tapes

Curious Marc curiousmarc3 at gmail.com
Wed May 6 18:01:21 CDT 2020


Thanks!
Marc

> On May 2, 2020, at 4:49 AM, David Collins via cctech <cctech at classiccmp.org> wrote:
> 
> I've pulled together details of the controller used with an HP2748 paper tape reader to dump a bunch of tapes from the HP Computer Museum's collection with the help of J. David Bryan.
> 
> The details are at this link..
> 
> https://drive.google.com/open?id=1KaJkVgYzPusJN9tLf4IaSIa104fvLhUs
> 
> The unit and Arduino code are both pretty rough and ready and I'm sure can be improved - but they served their purpose!
> 
> Hope it is of use to others...  
> 
> Now to get those new tape files published...
> 
> David Collins
> www.hpmuseum.net
> 
> 
> -----Original Message-----
> From: David Collins <davidkcollins2 at gmail.com> 
> Sent: Wednesday, 29 April 2020 7:34 AM
> To: J. David Bryan <jdbryan at acm.org>; General Discussion: On-Topic Posts <cctech at classiccmp.org>
> Subject: Re: Wanted, Papertape Reader for Archiving Tapes
> 
> Further to Dave’s post below, I’m happy to share the Arduino code and schematic if anyone has a suitable reader and wants to try it. It was indeed designed to interface to the HP2748 but is pretty simple and could be adapted to any similar reader. 
> 
> David Collins
> 
> Sent from my iPad
> 
>>> On 29 Apr 2020, at 6:33 am, J. David Bryan via cctech <cctech at classiccmp.org> wrote:
>>> 
>>> On Tuesday, April 28, 2020 at 17:56, Tony Duell via cctech wrote:
>>> 
>>> The HP2748 is a common-ish example of this type of un[i]t. 
>> 
>> David Collins of the HP Computer Museum and I just recently completed 
>> reading some 200+ paper tapes from the museum collection.  He used a 
>> 2748 coupled with a custom Arduino-based interface to produce 
>> plain-text files containing an octal representation of the tape bytes.  
>> We passed these through a small program to convert them to binary 
>> files and a second program to verify checksums of those tapes 
>> containing relocatable or absolute binary object data.  The resulting 
>> files can be used as is with the HP 2100 SIMH simulator or could be 
>> punched back into physical paper tapes if desired.
>> 
>>                                     -- Dave
>> 
> 


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