23 Jan
2021
23 Jan
'21
7:22 p.m.
On 1/23/21 12:48 PM, Johnny Billquist wrote:
Speaking of things like 74-series stuff. Based on
various restoration
projects I'm aware of, there seems to be a huge difference in quality of
those ICs. Depending on manufacturing batch, and manufacturer...
Some never fail, while with some others, you can almost predict that
they will be non-functional now.
So I guess it also do depend a bit on who you picked as supplier back in
the day.
Yes, very much so. We've noticed that National Semiconductor is the
worst offender for actual IC failures, and Texas Instruments is the
worst for corrosion on IC leads.
-Dave
--
Dave McGuire, AK4HZ
New Kensington, PA