[time-nuts] HP 5061A Cesium Beam Std

Pete Lancashire pete at petelancashire.com
Thu Feb 9 21:40:25 EST 2017

Search the list for what Paul and I did. There is a web page where someone
did the same forced pump down. If all the voltage s are good you have
nothing to loose. You are going to need a "real" high voltage source.

On Feb 9, 2017 6:01 PM, "David Smith" <w6te at msn.com> wrote:

> Hello Time Nuts Friends,
> I have acquired an HP 5061A off of EBAY and I believe the cesium beam tube
> may be bad. The ion pump meter pins out and never comes down to a
> reasonable level. I don’t have an external HVPS to check the tube as
> suggested in the manual. I’m thinking the worst here… that the tube is
> probably bad. The seller listed it “For Parts” and the usual “I have no way
> of checking it.” Fortunately, he has a 14 day return policy. He’s offered
> me $400 to keep it. I have $725 in it.
> My question to the group is… are there replacement tubes available? Any
> suggestions on what to do with it if I can’t get a replacement tube?
> Thanks in advance,
> Dave Smith / W6TE
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> Windows 10
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