| poynton |
I would think it was a Colpitts or other 'standard' oscillator using the triode instead of a FET. I dare say squaring is done by a gate.
Does the Xtal have a coil round it ?? or is it just damping material?
Andy |
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| quantran |
It's seem to be damping material only. From the photos, I do not see any connection from outer of the crystal to the PCB other than 2 legs of the crystal itself.
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Does the Xtal have a coil round it ?? or is it just damping material?
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| kevinkr |
As much as I love tubes (look at my posts elsewhere here) I can't imagine this is anything more than a marketing ruse. There are a lot of compelling reasons to use tubes in the audio path if you are so inclined, but I can't think of a single reason to do this as opposed to say the Kwak clock, LCAudio Lclock XO3 or the TentLabs clock. (Or for that matter a good diy clock if you have the instrumentation and patience to design a low jitter, stable clock. ) Tubes wear out and suffer significant parameter shifts over their useful life.
Of course YMMV.. |
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| kevinkr |
| That tube clock is pretty expensive too.. 300 Euro is a lot of money! |
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| jean-paul |
But it sounds better because it has a tube in it !!
:clown: |
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| lucpes |
| My wild guess is that it's a voltage rectifier. |
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| kevinkr |
| Looking at it quickly I believe it is actually the active element in the oscillator. |
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| quantran |
Could it be a Pierce oscillator?
Is it possible that the phase noise caused by the tube is less than that from a transistor? |
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