In that case, it all depends on what you're trying to accomplish. If you're
using WWV or something like that to set the frequency, then the 78L05 should be
fine.
Bob
From: ct1dmk <ct1...@gmail.com>
To: Discussion of precise time and frequency measurement <time-nuts@febo.com>
Sent: Tuesday, January 6, 2015 7:35 PM
Subject: Re: [time-nuts] VC-OCXO EFC stability.
Hi Bob, That is the issue, it doesn't.
(the 2,3 different types I would like to use none of them have it, so I will
be making a small pcb with the trimpot and the regulator and some
capacitors etc).
Luis Cupido.
ct1dmk
On 1/7/2015 1:09 AM, Bob Stewart wrote:
> Does your oscillator have a VRef output? If so, use that instead of a
> regulator. It's cleaner and usually temperature compensated.
>
> Bob
>
> From: ct1dmk<ct1...@gmail.com>
> To: Discussion of precise time and frequency measurement<time-nuts@febo.com>
> Sent: Tuesday, January 6, 2015 6:40 PM
> Subject: [time-nuts] VC-OCXO EFC stability.
>
> Hi,
>
> With a multiturn pot and a 78L05 I can get a 0 to 5V EFC to tune
> an OCXO on desired freq. But... maybe other voltage regulators
> or other scheme have better temp stability than the old 78L05.
>
> Before I crawl lost in new'ish fancy regulator land does anybody
> know the killer solution/IC for this job ?
>
> Luis Cupido
> ct1dmk.
>
>
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