Hyperspeed wrote:
Whilst I can sort of understand that 12V might fry circuits intended for 5V I could never work out why static would do so.
Cos static can easily be in the order of 1000's of volts. If you build up enough to create a spark, then you're talking around 10,000+
Also, what was +12v and -12v for in relation to the serial port?
Level shifting.
The Amigas CIAs take 5v I/O, but the RS-232 standard calls for upto +/- 15v.
