[time-nuts] homebrew maser

[J. Forster]

Corby,

Do you know if the collimator is made from an uncoated microchannel plate?
If so, an old, broken Gen II image intensifier might be a viable source.

Best,

-John

============


> Attila,
>
> The precision on the cavity itself does not need to be so tight as a
> mechanical tuning plunger takes up the initial tuning slack.
>
> The varactor tuning covers more than 10Khz
>
> This cavity is held at approx. 50 degrees C.
>
> The collimator for an active maser is a bundle of MANY hollow glass tubes
> that have been stretched by a glassblower to reduce the diameter of the
> holes to  very tiny size.
>
> Takes an expert!
>
> For a passive maser  a smaller number of tubes with larger teflon coated
> holes can be used.
>
> On the output of either style either a quadrapole or hexapole permanent
> magnet assy. is used to focus the beam.
>
> Tom VanBaak is going to host the manuals on his Leap Second website.
>
> I'll post on time nuts once they are there!
>
> Corby
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