> Congratulations, you've been seduced by the quoted noise without
> considering what it actually means.
> This is just the sort of reaction the marketers hope to induce.
> This is a natural reaction, you should be more skeptical of first
> impressions.
Exactly. It appears that the XC6204 is on
Grant Hodgson wrote:
> Torex make some very nice low noise regulators; the XC6204 series has
> been around for some years now and appears to offer much lower noise
> levels than the 723 :-
>
> http://www.torex-europe.com/products/range/125
>
> Click on 'Technical Diagrams' to see the noise plot o
On Thursday 13 December 2007 09:47:36 pm Bruce Griffiths wrote:
> Matt Ettus wrote:
> > Can you explain to me the use of fast recovery diodes if you are going
> > to put capacitors across them?
>
> Even with the snubber networks the reverse conduction time of the fast
> recovery diodes is consider
Torex make some very nice low noise regulators; the XC6204 series has
been around for some years now and appears to offer much lower noise
levels than the 723 :-
http://www.torex-europe.com/products/range/125
Click on 'Technical Diagrams' to see the noise plot of the 3V part - sub
1uV /rtHz at
This getting out of hand,
If you closely study the Andy weeke's circuit and the Walt Jung variation, you
will discover that it is VIRTUALLY the same circuit that is used in the UA723
regulator ! I suspect that Fairchild produced the UA723 before these guys
produced their work. It may be that Jun
- Original Message -
From: "Bruce Griffiths" <[EMAIL PROTECTED]>
To: "Discussion of precise time and frequency measurement"
Sent: Friday, December 14, 2007 4:36 PM
Subject: Re: [time-nuts] Super Regulator links
> John Miles wrote:
>> What
> Can you explain to me the use of fast recovery diodes if you are going
> to put capacitors across them?
I can see using fast-recovery diodes if you want to rectify the output of a
switching supply, to limit the losses. Ordinary 1N400x diodes start to run
very hot above a few kHz. In a switche
John Miles wrote:
> What are some of your favorite low-noise regulators? When I made the remark
> about the uA723, I was specifically thinking of its performance compared to
> the LT1762. With Cref=5 uF, the uA723's output noise voltage is rated at
> 2.5 uV from 100 Hz to 10 kHz. The LT1762, whi
> -Original Message-
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED] On Behalf Of Matt Ettus
> Sent: Thursday, December 13, 2007 8:25 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Super Regulator links
>
> Can y
13, 2007 6:49 PM
> To: Matt Ettus; John Miles
> Subject: Re: [time-nuts] Super Regulator links
>
>
>
>
> On Thu, 13 Dec 2007, Matt Ettus wrote:
>
> > He has "ultra high performance rectifier bridges". Sounds like
> snake oil to me.
> >
> > Mat
Matt
Matt Ettus wrote:
> Can you explain to me the use of fast recovery diodes if you are going
> to put capacitors across them?
>
>
Even with the snubber networks the reverse conduction time of the fast
recovery diodes is considerably shorter than when a standard recovery
rectifier is used.
Its
On Dec 13, 2007 6:15 PM, Bruce Griffiths <[EMAIL PROTECTED]> wrote:
> Matt Ettus wrote:
> > He has "ultra high performance rectifier bridges". Sounds like snake oil
> > to me.
> >
> > Matt
> >
> >
> Try looking at the circuit before commenting.
I did.
> Different culture express themselves in
Matt Ettus wrote:
> He has "ultra high performance rectifier bridges". Sounds like snake oil to
> me.
>
> Matt
>
>
Try looking at the circuit before commenting.
Different culture express themselves in slightly different ways, its
best to study the actual circuit and think about what the desig
He has "ultra high performance rectifier bridges". Sounds like snake oil to me.
Matt
On Dec 13, 2007 5:57 PM, Bruce Griffiths <[EMAIL PROTECTED]> wrote:
> Revised Super regulator link is:
>
> http://www.sjostromaudio.com/_unsql/hifi/
>
> However this may change as the website is in process of mo
Revised Super regulator link is:
http://www.sjostromaudio.com/_unsql/hifi/
However this may change as the website is in process of moving.
It works at the moment.
Bruce
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