Building LClock XO2

arlekin · 26th January 2006, 09:21 AM

Hello!

This is my first post so greetings to you all!

I want to build the XO2 but since I am not very expirienced or trained in electronics I have a few questions. I could by the clock, but i think its kind of a challenge to build it myself.

The questions are:

1. The coil marked in the picture with L1 100 uH can be the simple 100 uH coil from the electronic store? Or, is it suposed to have some special characteristics (iron core or something?). Should I wind it myself?

2. The second simbol marked represents what? I don't know what it is (no thaining, heh

). Any sugestions?

3. I also want to know do someone have any special prefered parts for the clock, what types of Resistors should I use (metal film or something else?). Conds?
The cristal will be inserted from my CD player during the building of the clock.

Thanks for the effort!

tmblack · 26th January 2006, 04:24 PM

It should be a choke that can pass DC without losing inductance.

The other symbol looks to be a jumper connection.

Tom

EE

arlekin · 26th January 2006, 07:26 PM

ok, thanx

Elso Kwak · 27th January 2006, 05:14 AM

the other symbol is a solder connection that can be left open.

arlekin · 27th January 2006, 09:42 AM

So, I don't have to conect it? (the jumper connection)

I was also wonderning how much ampers DC max should the choke be, and what frequences? I's kind of a filter to power suplly regulator, right? And what about chokes resistence?

So many questions.

Elso Kwak · 27th January 2006, 12:00 PM

Quote:

Originally posted by arlekin
So, I don't have to conect it? (the jumper connection)

I was also wonderning how much ampers DC max should the choke be, and what frequences? I's kind of a filter to power suplly regulator, right? And what about chokes resistence?

So many questions.

Amperes??? OMG say 10 mA, that is milli-Amperes for your information.
The choke is a 1watt resistor model. Now don't ask me if this is right or wrong, that's what Lars was using....... The choke forms a pi-filter together with the filtercap of the raw digital supply. Makes ripple less and anything above that frequency, hopefully hahaha.....
I would not connect the extra 10pF for 45 MHz.
Why don't you build my clock? [joke]
Me helping with Lars' clock, well this is funny.......

You can download my clock here:
http://www.diyaudio.com/forums/showt...928#post199928

Jocko Homo · 27th January 2006, 04:19 PM

If he wanted to build a real clock, he could build one of mine.

"I tell ya....I get no repsect.....no respect at all. I get home last night, the wife says: "Take me some place "I've never been." Ok, try the kitchen. No respect at all......."

Don't think I need to add [joke] after that one. Maybe I do. No respect.........

Jocko

Elso Kwak · 27th January 2006, 04:32 PM

bedroom?

tmblack · 27th January 2006, 04:42 PM

Check to ensure your chips accepts 5V logic signals, some newer chips use 3.3V and may become damaged.

Tom

EE

Jocko Homo · 27th January 2006, 05:16 PM

That would be true, in a sense.

I could tell the one about the cab driver and the nekkid pictues, but I suspect I am being watched................

Jocko

27th January 2006, 05:16 PM	#10
Jocko Homo Banned Join Date: Feb 2002 Location: As far from the NOSsers as possible	Well, since I never had a wife....... That would be true, in a sense. I could tell the one about the cab driver and the nekkid pictues, but I suspect I am being watched................ Jocko

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26th January 2006, 04:24 PM	#2
tmblack diyAudio Member Join Date: Jan 2005 Location: UK	It should be a choke that can pass DC without losing inductance. The other symbol looks to be a jumper connection. Tom EE

26th January 2006, 07:26 PM	#3
arlekin diyAudio Member Join Date: Jan 2006 Location: Sibenik	ok, thanx

27th January 2006, 05:14 AM	#4
Elso Kwak Banned Join Date: Dec 2001 Location: Zamboanga, City of Flowers, Mindanao	the other symbol is a solder connection that can be left open.

27th January 2006, 09:42 AM	#5
arlekin diyAudio Member Join Date: Jan 2006 Location: Sibenik	So, I don't have to conect it? (the jumper connection) I was also wonderning how much ampers DC max should the choke be, and what frequences? I's kind of a filter to power suplly regulator, right? And what about chokes resistence? So many questions.

27th January 2006, 04:19 PM	#7
Jocko Homo Banned Join Date: Feb 2002 Location: As far from the NOSsers as possible	If he wanted to build a real clock, he could build one of mine. "I tell ya....I get no repsect.....no respect at all. I get home last night, the wife says: "Take me some place "I've never been." Ok, try the kitchen. No respect at all......." Don't think I need to add [joke] after that one. Maybe I do. No respect......... Jocko

27th January 2006, 04:32 PM	#8
Elso Kwak Banned Join Date: Dec 2001 Location: Zamboanga, City of Flowers, Mindanao	bedroom?

27th January 2006, 04:42 PM	#9
tmblack diyAudio Member Join Date: Jan 2005 Location: UK	Check to ensure your chips accepts 5V logic signals, some newer chips use 3.3V and may become damaged. Tom EE

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