[time-nuts] 5071A with ATTENTION flashing
379998 at qq.com
Sun Nov 13 02:51:55 EST 2016
I just came back from another 5071a seller.
#1-#3 fatal error: max emult.
#4 fatal error: overcureent (about 80uA)
I put the tube from #1 to #4. #4 became a "max emult" one.
I think the tube #1 is really dead and the circuit of #4 is functional.
Since the ion pump current was dropping slowly.(80uA to 76uA in 1 hour), is it possible to be back to normal?
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