IF you getting noise form 78xx parts its your fault.
?
The input need minimally 1uf cap with short leads and the
output not less than .1uf.? ?The 78xx part are linear regulators
and if there is noise its because the bypassing is poor and
its oscillating.
?
I've seen that in many cases, used wrong it does bad things.
?
--
Allison
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Post online only,?
direct email will go to a bit bucket.
