On Thu, 15 Apr 2021 at 04:19, andrew beck <[email protected]> wrote:

> looking for info on how to wire up a mesa ency encoder card to my vfd.

Using arcane knowledge (ie, how Mesa manuals are named, and how to
google for them) I found the manual.

http://freeby.mesanet.com/encyman.pdf

That gives an absolute maximum input voltage of 13V. What is the
output voltage of the encoders? It is not unusual for them to be 12V
(or 24V) input but to output a 5V ttl-level or differential signal.

-- 
atp
"A motorcycle is a bicycle with a pandemonium attachment and is
designed for the especial use of mechanical geniuses, daredevils and
lunatics."
— George Fitch, Atlanta Constitution Newspaper, 1912


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