Amiga.org
Amiga computer related discussion => Amiga Marketplace => Topic started by: redrumloa on November 18, 2003, 01:47:58 PM
-
I am looking to purchase SID chips in any quantity, the more the better.
-
I had a spare one, but due to an accident, all the pins got squashed and some of them broke :-(
Doesn't really help you, i know. Are you after them for catweasels?
-
Shame, don't really want to be repairing pins:-( I am after them for multiple reasons, Catweasels being one of them. SID chips are the most sought after of the old C= chips. As a matter of fact I just sold a couple off and now I realise I need 2 for myself :-/
-
Good luck!
They're getting scarce. :-(
-
Try Individual Computers. AFAIR they once bought a huge stock of those ...
-
Could one make an FPGA replacement?
-
@bloodline
Fairly easily. Could even do it in CPLD.
-
click on jester. (http://www.fpga.nl/)
-
downix wrote:
click on jester. (http://www.fpga.nl/)
:-D
-
@bloodline
From what I can tell, the only issue with cloning a SID is the analog filter, namely SID's filter is a hack put on the last moment.
If you can opt for an external filter, wouldn't take long to clone SID at all.
-
So what is the SID anyway? just a couple (3?) ocilators and a filter? I could knock one up on a breadboard in an evening!!! :-)
-
mmmmmm bread...
-edit-
Sorry, that's soo OT, but I am really hungry!
-
@bloodline
It is:
3 tone occilators
3 Envelope Generators
3 Amplitude Modulators
4 mixers
1 Filter
A volume control
and the analog converter.
yes, a simple breadboard could do it.
-
downix wrote:
@bloodline
It is:
3 tone occilators
3 Envelope Generators
3 Amplitude Modulators
4 mixers
1 Filter
A volume control
and the analog converter.
yes, a simple breadboard could do it.
Did it have preset wave forms?
-
It would have been pretty cool if some of that had found its way into paula, eh?
Can you imagine the fun pumping samples through a resonant filter? Man, that would have been awesome for tracker types.
Hmm, anybody remember musicline?
-
@bloodline
Yes:
triangle
Pulse
sawtooth
ring
and noise
A good page for detail on the SID can be found here (http://stud4.tuwien.ac.at/~e9426444/sidtech.html)