Bruce Griffiths wrote:
>
> The setup is reasonably straight forward to duplicate.
> However a pair of Helmholtz coils isnt optimum.
> 3 pairs would be better as it may not be convenient/possible to align
> the apparatus with the Earth's magnetic field,
>
> There are coil arrangements that produce
WB6BNQ wrote:
> Why do all that when the entire instrument is all ready available for cheap ?
>
> Any Rubidium frequency oscillator from Efratrom, Frequency electronics,
> Symmetricom, or the old Datum units, etc., off ebay for $200 or less is
> essentially
> the same thing as this highly over pri
Why do all that when the entire instrument is all ready available for cheap ?
Any Rubidium frequency oscillator from Efratrom, Frequency electronics,
Symmetricom, or the old Datum units, etc., off ebay for $200 or less is
essentially
the same thing as this highly over priced school lab device.
Bill Hawkins wrote:
> Well then, how about kits, or DIY instructions? Something in "The Boy
> Electrician?"
>
> There's only so much you can learn with eBay bargains and deviation
> plots.
>
> Bill Hawkins
>
>
> -Original Message-
> From: John Day
> Sent: Monday, February 23, 2009 8:23 PM
>
Well then, how about kits, or DIY instructions? Something in "The Boy
Electrician?"
There's only so much you can learn with eBay bargains and deviation
plots.
Bill Hawkins
-Original Message-
From: John Day
Sent: Monday, February 23, 2009 8:23 PM
At 07:59 PM 2/23/2009, you wrote:
>Can T
At 07:59 PM 2/23/2009, you wrote:
>Can TAPR put together a group buy on these?
>http://www.teachspin.com/instruments/optical_pumping/index.shtml
>
>-- john, KE5FX
An absolute bargain at just $16,000! Wonderful, do I get a bulk deal for two?
LOL
John
>___
Can TAPR put together a group buy on these?
http://www.teachspin.com/instruments/optical_pumping/index.shtml
-- john, KE5FX
___
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