Hey Don,
While rewriting the scope’s previous calibration is better than nothing,
calibrating the scope is best. If it’s between spending time on restoring
calibration that’s decades past due, or spending time on fresh calibration,
I know which I’d rather do.
If you’re local to me (Montreal, Quebec), you could pop in for an afternoon
and we should be able to do a passable job of it. If not, maybe there’s
someone local to you that’s geared up.
If you have a decent synthesized signal generator or ARB, that’ll do most
or all of the job for timing. The voltage signals you need aren’t terribly
demanding either, most any 12 bit or better signal generator would do a
good job. You also need a second scope, though for most here, that’s not an
issue (except for choosing between N-1 “spares” :).
Siggi
