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- Here are Uuencoded plans for a sound digitizer that uses 2 chips and a
- few parts. It looks fairly simple. It is supposed to work with
- Perfect Sound software. I have not constructed it, but the person who
- originaly sent it to me said his worked. He included a note about a
- fix he had to make to get his to work.
-
- You might like to clean up the documentation and fixes that come with
- the IFF schematics. I tried to clean it up, but found my version of
- UUencode did not work and munged the zoo I had made. So, I resorted
- to using the original that was sent to me, and appending the fixes.
-
- If you decide to make it, make sure you read ALL the files that come
- with IT. IN THIS FILE ARE NOTES OF A FIX NECCESSARY TO GET IT TO WORK
- with the chips as they did not seem to work right.
-
- You may have to move the 47pF cap that went from pin 19 to ground I
- put it from pin 4 to ground instead. After this, it worked. I'm not
- sure if it was the correct thing to do, but it's what I had to do to
- make MINE work.
-
- The digitizer plans were made to connect to an A500 parallel port.
- However this will not work on an A1000 without some changes. If you
- have an A1000:
-
- Pin 10 (ACK*) is the same on both the A500 and A1000,
- so you don't have to change it.
-
- Pins 2 to 9 (Data bits) don't change either.
-
- Pin 14 in the A500 is +5v (100 mA). Use pin 23 on the A1000 for this.
-
- Pins 17 to 25 on the A500 are signal to ground. Use pin 14 on the A1000
- for this.
-
- That should be all that is needed! (I hope!) I have not tried it on
- my A1000, but thought I would post it to a bbs right away anyways.
-