Tony Duell [ard at p850ug1.demon.co.uk] wrote:
Semiconductor devices : Impossible to make at home (I would _love_ to
be proved wrong :-)). Transiotrs, doidoes and other discretes often
have suitable substitutes still available. Standard ICs are likely to
be avaialble somewhere even if no longer made. Custom ICs are a pain!
Does this count:
http://www.youtube.com/watch?v=vmotkjMSKnI
?