25 Aug
2014
25 Aug
'14
6:44 p.m.
On 08/25/2014 05:57 PM, drlegendre . wrote:
See this one I knew, so yes, I did check the zener
regs, and yes, they are
just fine.. as is the 7805.
Nods on the 7805s running hot on this machine. Might be a nice place to
install a modern part with higher current handling, and a bit more heat
sink as well.
You can't beat a switching regulator for this kind of thing--only
requires a couple of (small) external components--and I believe that you
can get pre-assembled modules that are a pin-for-pin substitute for a
78xx. Why heat things up?
--Chuck