[time-nuts] re low noise regulators

John Miles jmiles at pop.net
Fri Dec 14 20:18:50 UTC 2007


Well, not to put too fine a point on it, but it WAS nonsense and rubbish.
The assertion in question had no basis in reality.  I was pretty darned sure
about that, because I had just made the same bad assumption at my own
workbench.

In my case I had assumed that the Jim Williams-certified Low Noise(tm)
LT1762 was the best part for a VCO power supply, or at least as good as
anything else on the market.  I knew very well what a 723 was -- every
80s-vintage boat anchor from HP and Tektronix around here is full of them.
But I didn't bother to check its data sheet, and my PLL fell short of its
expected PN level as a result.  I wish somebody had said "Nonsense, rubbish"
about two months ago when I was laying out the board!  Heh...

-- john, KE5FX


> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com]On
> Behalf Of Rob Kimberley
> Sent: Friday, December 14, 2007 9:22 AM
> To: 'Discussion of precise time and frequency measurement'
> Subject: Re: [time-nuts] re low noise regulators
>
>
> "Nonsense", rubbish"??
>
> Not the words I want to hear from a fellow Time Nut.
>
> Bruce, next time how about giving constructive criticism without
> belittling
> other peoples efforts?
>
> Remember that this group contains everyone from professionals to complete
> newcomers. We want to encourage and grow the group by collective help and
> encouragement, not by insulting them.
>
> Season of goodwill to all men?
>
> Cheers
>
> Rob Kimberley





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