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Old 25th October 2004, 04:40 PM   #1
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Default need help with kwak clock components

Just got the list of components needed for a kwak clock 7.
Are there alternative models for the Pot, the Fet, and the Transistors?
What does NPO stand for? non polarized?
What size should the ferrite beads be?
Thanks,
Guillaume
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Old 25th October 2004, 08:39 PM   #2
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Lightbulb Re: need help with kwak clock components

Quote:
Originally posted by guillaume
Just got the list of components needed for a kwak clock 7.
Are there alternative models for the Pot, the Fet, and the Transistors?
What does NPO stand for? non polarized?
What size should the ferrite beads be?
Thanks,
Guillaume

guillaume, Any pot will do, no alternative for the FET. Transistors can be any type.
NPO ceramic cap stands for zero tempco cap. Ferrite just small size 3.3x 3.5 mm(L x D). I hope this helps.
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Old 25th October 2004, 09:18 PM   #3
Bricolo is offline Bricolo  France
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guillaume, if you're in france I can send you the jfet if you can't find one.

As Elso said, the pot isn't critical; a multiturn is better. The same value, or a close one is ok. I think that any small signal and high beta transistor will fit. (BC557/547 or BC5505/560 aren't hard to find)

I can't tell anything for the choke, since mine aren't ok (and Elso's avatar isn't either, I think )


Hollydays in Brasil, Elso?
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Old 25th October 2004, 09:21 PM   #4
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Quote:
Originally posted by Bricolo
guillaume, if you're in france I can send you the jfet if you can't find one.

As Elso said, the pot isn't critical; a multiturn is better. The same value, or a close one is ok. I think that any small signal and high beta transistor will fit. (BC557/547 or BC5505/560 aren't hard to find)

I can't tell anything for the choke, since mine aren't ok (and Elso's avatar isn't either, I think )


Hollydays in Brasil, Elso?

Bricolo, you seem to know better than the designer/ creator of the damned thing, isn't it
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Old 26th October 2004, 04:57 AM   #5
Bricolo is offline Bricolo  France
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I was just kidding for the choke

But please correct me if I made a mistake for the other parts
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