[time-nuts] "Vanguard Ultra precision Golden Oscillator"
Bob Camp
kb8tq at n1k.org
Mon Aug 24 11:14:58 UTC 2015
Hi
> On Aug 23, 2015, at 10:29 PM, Hal Murray <hmurray at megapathdsl.net> wrote:
>
>
> kb8tq at n1k.org said:
>> There is not a lot to an un-compensated crystal oscillator. Tuning it on
>> frequency is fairly simple. Even for odd frequencies Mouser will happily
>> sell you a crystal for next to nothing. Toss in a handful of parts and you
>> have a very respectable oscillator. For a basement project … much better
>> than spending $40 on something suspect from who knows who.
>
> What's magic about a crystal as compared to an osc? Is it really easier to
> get an odd-ball frequency in a crystal vs an osc?
When I do a Mouser search for frequencies in the range I mentioned, the number
of frequencies is pretty small. If I switch over to looking at crystals at Mouser, the
frequency choices are a lot greater. Yes, as with the oscillators you need to sort out
the ones that aren’t going to cut it.
To your point - no, you can’t get anything / any frequency through distribution. That’s
true both of oscillators and of crystals. You just more picks with the crystals.
Bob
>
> The last time I bought a special frequency osc was over 10 years ago. Once I
> found the right company, things were simple. I don't remember the price. At
> the time, it seemed reasonable, but that was for a commercial project rather
> than a basement lab.
>
> Do those companies still exist or have they all fallen through the cracks of
> higher volumes and lower prices.
>
>
> --
> These are my opinions. I hate spam.
>
>
>
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