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The Well Tempered Master Clock - Building a low phase noise/jitter crystal oscillator
The Well Tempered Master Clock - Building a low phase noise/jitter crystal oscillator
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Old 14th July 2019, 06:31 PM   #1771
clsidxxl is offline clsidxxl  France
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Supersurfer what results do you have with battery power on the clock 6Volt.
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Old 15th July 2019, 02:13 PM   #1772
QSerraTico_Tico is offline QSerraTico_Tico  Europe
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Smile new crystal

A pleasant surprise was that the latest batch 11.2896MHz SC-cut crystal sounds better than the earlier batch!
And that operating at room temperature in a Colpitts oscillator.
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Old 15th July 2019, 05:37 PM   #1773
Supersurfer is offline Supersurfer  Netherlands
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Quote:
Originally Posted by clsidxxl View Post
Supersurfer what results do you have with battery power on the clock 6Volt.
Difficult to distinguish, the clock is also still running in and I used a battery line that I had paralleled for feeding the iv board in my streamer; so the configuration is now different. There are too much variables to say if battery is better or not.
Maybe I will compare later on when all is settled.
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Old 15th July 2019, 06:55 PM   #1774
wlowes is offline wlowes  Canada
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Thanks for the early feedback Supersurfer.

Your pioneering helps those of us following. You have a system that will reveal the fine details.
If I can get 90% of the benefit of the clock using a good linear PS I will be happy.
It will be interesting to see how much benefit there is from feeding clock with a separate PS. People claim its important to avoid contaminating other supplies. Time will tell.
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Old 16th July 2019, 08:34 AM   #1775
90999 is offline 90999  China
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can 1N5711 use for TWTMC-C?

it == bat81s ?
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Old 16th July 2019, 04:44 PM   #1776
diyiggy is offline diyiggy
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Quote:
Originally Posted by QSerraTico_Tico View Post
A pleasant surprise was that the latest batch 11.2896MHz SC-cut crystal sounds better than the earlier batch!
And that operating at room temperature in a Colpitts oscillator.
You mean, beeter tha previous sc cut batch or than the at cut at same frequency?
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Old 16th July 2019, 04:48 PM   #1777
clsidxxl is offline clsidxxl  France
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Quote:
Originally Posted by clsidxxl View Post
Supersurfer what results do you have with battery power on the clock 6Volt.

Thank for the return
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Old 16th July 2019, 04:49 PM   #1778
clsidxxl is offline clsidxxl  France
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Sorry.
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Old 18th July 2019, 10:23 AM   #1779
QSerraTico_Tico is offline QSerraTico_Tico  Europe
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Quote:
Originally Posted by diyiggy View Post
You mean, beeter tha previous sc cut batch or than the at cut at same frequency?
Better than the previous SC cut. The SC cut is always superior to AT cut, even the tiny "tuning fork" type.
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Old 18th July 2019, 02:17 PM   #1780
diyiggy is offline diyiggy
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It means there is no production consistency from Laptech ?

Or a detail changed in your setup as a passive component on the oscillator like a type or brand of caps for instance or a diiferent smd resistor ??

Is it a hearing feeling or do you check an important difference via your scope?

Agging or break in of the previous sc cut you have ?

Anyway thank you for your inputt
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