3 Jun
2006
3 Jun
'06
4:49 a.m.
On 6/3/06, Roy J. Tellason <rtellason at blazenet.net> wrote:
On Friday 02 June 2006 10:03 pm, Billy Pettit wrote:
I do it all the time - getting them off is easy - it can be tricky to
reuse parts if
the leads aren't clean and flat. Obviously, working with new parts is
easier - they
sit nice and flat on the board, but sometimes, it's faster to recycle
parts from a
dead board than order a small quantity from Digikey or whomever.
In fact, this discussion has prodded me into
doing something I've put off
for a long time - strip some PCBs I found with 8ns CMOS static RAMs, 128Kx8.
They are surface mount and the small geometries are a real challenge for my
twisted fingers and bifocal eyes.
I haven't yet tried to salvage any surface-mount chips, yet, though I do
have a board here with a few transistors that are tempting me. 8 ns?! That's _fast_... Some cache I snagged out
of a defunct 486
board is about the fastest I've managed to salvage yet, and it oughta really
do just fine with a z80 or something, no wait states there!
I've used cache SRAMs in a few projects, an 1802, for example. Very
handy, and they take up less board space than a 62256.
-ethan