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25th October 2004, 04:40 PM
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#1 |
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diyAudio Member
Join Date: May 2004
Location: Thailand
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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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25th October 2004, 08:39 PM
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#2 | |
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Banned
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
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Re: need help with kwak clock components
Quote:
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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25th October 2004, 09:18 PM
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#3 |
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diyAudio Member
Join Date: Nov 2002
Location: Grenoble, FR
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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? 
__________________
Just remember: in theory there's no difference between theory and practice. But in practice it usually is quite a bit difference... Bob Pease |
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25th October 2004, 09:21 PM
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#4 | |
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Banned
Join Date: Dec 2001
Location: Zamboanga, City of Flowers, Mindanao
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Quote:
Bricolo, you seem to know better than the designer/ creator of the damned thing, isn't it 
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26th October 2004, 04:57 AM
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#5 |
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diyAudio Member
Join Date: Nov 2002
Location: Grenoble, FR
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I was just kidding for the choke
But please correct me if I made a mistake for the other parts
__________________
Just remember: in theory there's no difference between theory and practice. But in practice it usually is quite a bit difference... Bob Pease |
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