Debug audio input altairclone with Oscilloscope

General discussions related to the Altair 8800 Clone

Debug audio input altairclone with Oscilloscope

Postby barjammar » April 1st, 2015, 1:14 am

I have obtained useful images of cassette data input as shown in these images on the web.
http://bajama.mine.nu/~barry/hardware/A ... index.html
If you see a closeout sale at Radio Shack, grab one of these desktop digital recorders.
Barry
Screenshot 2015-04-01 14.09.04.jpg
Last edited by barjammar on April 7th, 2015, 10:37 am, edited 1 time in total.
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Re: Debug audio input with Oscilloscope

Postby gio74 » April 3rd, 2015, 1:09 pm

wouldn't be easier to take the measure at the mini jack out?
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Re: Debug audio input altairclone with Oscilloscope

Postby barjammar » April 7th, 2015, 5:58 pm

You are correct but I had it open anyway. Why don't you post a block diagram of the IO with pin outs and test points?
Thanks
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Re: Debug audio input altairclone with Oscilloscope

Postby toml_12953 » April 9th, 2015, 8:55 am

Thanks for the tip about the digital recorder! I'm using one now and it is more reliable than using analog tapes. Not bad for $4.95 at Radio Shack!
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