[time-nuts] Fwd: Fwd: HP5061B Ion Current
john at miles.io
Wed Mar 22 17:34:38 EDT 2017
Yeah, I wouldn't worry about the oven, but the ionizer filament is a different story. Those can definitely open up.
-- john, KE5FX
Miles Design LLC
> -----Original Message-----
> From: time-nuts [mailto:time-nuts-bounces at febo.com] On Behalf Of
> Donald E. Pauly
> Sent: Wednesday, March 22, 2017 11:32 AM
> To: time-nuts; rward0 at aol.com; Donald E. Pauly
> Subject: [time-nuts] Fwd: Fwd: HP5061B Ion Current
> I have posted two HP patents on the cesium beam tube at
> http://gonascent.com/papers/hp/US3323008.pdf and
> http://gonascent.com/papers/hp/US3397310.pdf . Both are of academic
> interest. The first claims that the cesium oven operates at 60°-70° C.
> This is a tiny heating compared to a 1,000° filament on a power
> transmitting tube. I say that it can be cycled a million times with
> no problem of thermal cracking.
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