Tri-Onics DRO x21D013-06

Will appreciate any data on this old single axis DRO that uses an Intel 8080 "up"

 and gas filled display "tubes"!

I have one with no scales and have never used it.

Evidently it is designed for scales that have both inch and metric output signals.

Info. on acceptable scales would bet especially helpful.

Will use it for another axis on my horiz. mill.

I know this is old school.

Thanks, Jim  jladd52@...