Re: [N8VEM-S100:6303] Paper Tape Reader Project

[Richard Cini <rich...@verizon.net>]

Bad pin count?those aren¹t optoisolators, but rather 555 timers. There¹s
probably a better way with flip-flops.

Rich

--
Rich Cini
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator
http://www.classiccmp.org/cini
http://www.classiccmp.org/altair32




On 2/11/15, 9:59 PM, "Richard Cini" <rich...@verizon.net> wrote:

>I think the OP-80A is the ³template² paper tape reader:
>
>http://www.swtpc.com/mholley/OAE80_Reader/OAE80_Index.htm
>
>I didn¹t look at the manual, and maybe the optoisolators are overkill,
>but 
>at least it¹s a start.
>
>Rich
>
>--
>Rich Cini
>Collector of Classic Computers
>Build Master and lead engineer, Altair32 Emulator
>http://www.classiccmp.org/cini
>http://www.classiccmp.org/altair32
>
>
>
>
>On 2/11/15, 9:48 PM, "Don Caprio" <ilv...@gmail.com> wrote:
>
>>I've always wanted to build a simple paper tape reader.
>>But to be honest I'm not sure how to go about doing it.
>>
>>I've seen this one created by ipscone however emails go
>>unanswered. Looks like a very simple design.
>>I'm guessing just a LED array, some op amps and a couple TTL's.
>>
>>Anyone know of a schematic or would be willing to help me cook one up?
>>
>>http://youtube.com/watch?v=uZnuu18FtQk
>>
>>Thank you.
>>
>>-- 
>>Don Caprio
>>ilv...@gmail.com
>>
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