[time-nuts] Maser manual

[paul swed]

Corby
Thanks. So it really uses very little hydrogen then. I was wondering about
the refill process.
Definitely like the red glow of the hydrogen.
I find the unique orange/purple hue of the RB interesting. Have seen it
while trying to get the last ounce of life out of old telco Rbs.

On Wed, Sep 1, 2010 at 4:47 PM, Corby Dawson <cdelect at juno.com> wrote:

> Paul,
>
> Yes it is operating.
>
> With the exception of some down times to replace each of the ion pumps
> when they failed (at separate times) it has been running nonstop for 3
> years.
>
> I also had to replace the disassociator oscillator with an
> oscillator/amplifier of my own design.
>
> Also replaced the original 1.4Ghz RF amp (2.8db NF) with a modern amp
> having a .4db noise figure.
>
> Had to refill the little hydrogen bottle once so far. (via a homebrew
> manifold and a tank of ultra pure H2)
>
> The local gas co. does provide the H2 but the adaptor for refilling is
> homebrew as the vintage European hydrogen bottle fittings are no longer
> available.
>
> I'll see if I can post a PIX or two of the Vacsorb pumping station and
> the ion pumps.
>
> Corby Dawson
> cdelect at juno.com
> ____________________________________________________________
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