Facit 4070 to PC interface
bobalan at sbcglobal.net
Wed May 4 22:32:04 CDT 2016
On 5/4/2016 5:52 PM, Charles Dickman wrote:
> Has anyone ever worked up a PC parallel port to Facit 4070 paper tape
> punch interface?
> I found one on a Swedish website. The punch parallel input looks like
> it is TTL compatible, but I can't find anything in the documentation
> that describes the input voltage specifications.
Check this link out:
It shows how to build a PC to 4070 interface. Basically inverting a few
Vintage computers and electronics
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