yes, thanks for this list david. i've got everything on here(as i have been working on my own synths for years now).
one addition i would offer:
1-tuner. if you are on a mac, katsura(sp?) makes a strobe tuner that is a downloadable pgm, and works waaaaay better than the little chromatic tuners guitar center sells. assuming your comp as an audio input, you can plug right in, use internal audio, and get RIGHT on the dot, to the cent. awesome.
2-same with oscilloscope. there is a program called signalscope pro, same deal. available on versiontracker.com.
now it looks like i really need a spare 50/60/80 voice card for the chips.....if anyone ever comes across one, please drop me a line. i have been on the hunt for a 50/60 carcass to scavenge, i will post if i find one to part out.
David Rogoff <
david@...> wrote: On a related note, anyone trying to work on a CS80 (or other analog
synth) needs the following:
anti-static wrist strap - about $10
digital voltmeter - about $20 - $100 new/used
analog oscilloscope/probes - about $50 - $100 used (only need very
simple 10MHz 'scope)
non-conductive trimmer/adjuster - $5
tuner
a $30 chromatic tuner will work
Here's a cheap replacement for a strobe tuner if your 'scope has an
X/Y mode (most do)
1) create wave files of sine waves at the reference frequencies (I
used Sound Forge and can post the files)
2) attach your soundcard output to the 'scope's X/horizontal input
3) attach your CS80's output to the 'scope's Y/vertical (normal) input
4) set the sound to loop/repeat
5) set the CS80 to sine wave as directed in the standard tuning
instructions
6) when the frequencies match, the 'scope squiggle will be a
static, or very slowly changing line or ellipse
Look at this excellent website that shows what it will look
like:
http://www.mathcats.com/explore/lissajous/lissajous.html Make X and Y frequencies the same and then change one slightly
to see the "beating" effect. Notice that you can
change one frequency by octave (double, half, 4-times, etc) and
it still works, so you don't need to change the computer
sound file to tune different octaves.
If you're going to be replacing parts, add:
Good, grounded tip soldering iron -
Soldapullt solder remover - $10
Solder wick - $10
And, if you're going to replace all the CMOS chips:
de-soldering station - $100 - $300 new/used (I bought one and then sold
it when I was done)
Anything I missed?
David
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