Carbon Film vs. Metalfilm
Hi Bricolo,
Your resistors are probably carbon film. I can send you a set of 1% metalfilm films free of charge. I know you are on a budget.
This way you can modify your clock at no extra cost.🙂
Hi Bricolo,
Your resistors are probably carbon film. I can send you a set of 1% metalfilm films free of charge. I know you are on a budget.
This way you can modify your clock at no extra cost.🙂
Stop calling me dumb, Elso! 
You know that I'm not talking about that, I can still buy resistors for half an euro
You know that I'm not talking about that, I can still buy resistors for half an euro
I cannot work under these conditions, hehe. Far too tense.
I considered putting a resistor in series, but the loading motor is mounted only on solder onto a pcb. And its supply comes from that pcb and its mounting points. With a bit more time and patience I could have traced the tracks back and found which wire to chop and put a resister inline with it, but it was getting very late and I was getting a little edgy from having my cdp in so many pieces to get to that motor, hehe.
Elso I dont know what to think any more! 😉 I'm happy using a naked crystal at the moment though
Steve
I considered putting a resistor in series, but the loading motor is mounted only on solder onto a pcb. And its supply comes from that pcb and its mounting points. With a bit more time and patience I could have traced the tracks back and found which wire to chop and put a resister inline with it, but it was getting very late and I was getting a little edgy from having my cdp in so many pieces to get to that motor, hehe.
Elso I dont know what to think any more! 😉 I'm happy using a naked crystal at the moment though
Steve
Yep, this may be too much trouble.
Mine isn't directly on the PCB, and has a 2 wires connector. That's why I thought about this.
Mine isn't directly on the PCB, and has a 2 wires connector. That's why I thought about this.
Ahh no question then I would have done it that way if it had leads to it. 🙁 Must be rotel cutting corners a bit, but then I don't suppose they thought many people would want to tinker with it. I still dont know why they made it move so violent, that spoils for me an otherwise very pleasant to look at player 🙁 Its held out for a few days with a parallel resistor setup now, under quite hot conditions, so I might take my chances with it now.
Steve
Steve
It's nice if it works, and I hope it will always do.
But I'm not sure about that 🙁
In my CD player, the tray motor is controlled with an opamp. If it's the same with your player, and that with a parallel resistor you manage to deduce the motor's speed, it's because you're overloading this opamp.
But I may be wrong, and it could work for years. I hope so 😉
But I'm not sure about that 🙁
In my CD player, the tray motor is controlled with an opamp. If it's the same with your player, and that with a parallel resistor you manage to deduce the motor's speed, it's because you're overloading this opamp.
But I may be wrong, and it could work for years. I hope so 😉
Ahh time will tell 🙂
Ill probably get bored and take it all to pieces again soon anyway, especially now im a little more confident stripping the transport right down.
Steve
Ill probably get bored and take it all to pieces again soon anyway, especially now im a little more confident stripping the transport right down.
Steve
OOO arousing! 😉 hehe
Wouldn't the quartz be mechanically decoupled to some extent by the mounting clips anyway then? I always wondered how they manufacture these to such close tolerances....and how a lump of quartz results in an oscillator circuit in the first place...
Would mechanical vibration really effect a system operating at MHz's, or would any damping be more of a reliability thing? Maybe those mounting clips could fatigue after a while?? In which case can you get special crystals that are foam filled or something like that to further support the quartz for high g applications or something...
Steve
Wouldn't the quartz be mechanically decoupled to some extent by the mounting clips anyway then? I always wondered how they manufacture these to such close tolerances....and how a lump of quartz results in an oscillator circuit in the first place...
Would mechanical vibration really effect a system operating at MHz's, or would any damping be more of a reliability thing? Maybe those mounting clips could fatigue after a while?? In which case can you get special crystals that are foam filled or something like that to further support the quartz for high g applications or something...
Steve
Of course mechanical vibration and other factors really have influence on behaviour of crystals. Please check some sites of manufacturers of specialized crystals/crystalovens etc. for more information on the matter.
Arcam uses simple rubber rings on the crystals used in their cdplayers for several years now.
You can try for yourself by placing in a rubber ring over a crystal in a cdplayer or by using silicone kit on it.
Arcam uses simple rubber rings on the crystals used in their cdplayers for several years now.
You can try for yourself by placing in a rubber ring over a crystal in a cdplayer or by using silicone kit on it.
Blank suspension
Hi Steve,
The naked quartz or blank, as it is called in the trade, can be suspended by small springs. At least this is what I saw in a certain XO.
See also Jocko's post:
http://www.diyaudio.com/forums/showthread.php?postid=150254#post150254
Also found a PDF file on the Vectron site with this new suspension sytem for very high g-forces.
The Vig-Tutorial might be interesting reading about quartz crystals and oscillators. Caution 6.5MB file!
www.corningfrequency.com/library/vig/vig-tutorial.pdf
😉
baggystevo82 said:
Hi Steve,
The naked quartz or blank, as it is called in the trade, can be suspended by small springs. At least this is what I saw in a certain XO.
See also Jocko's post:
http://www.diyaudio.com/forums/showthread.php?postid=150254#post150254
Also found a PDF file on the Vectron site with this new suspension sytem for very high g-forces.
The Vig-Tutorial might be interesting reading about quartz crystals and oscillators. Caution 6.5MB file!
www.corningfrequency.com/library/vig/vig-tutorial.pdf
😉
Attachments
Re: Blank suspension
And I though I was starting to run out of things to do!! 😀
Any thoughts on how to go about damping IC's? Or would it be best to concentrate on what the CD player sits on? At the moment its on a 1" thick slab of granite, which is on a big heavy chest of drawers (full of enough random crap that I cant pick it up), and the amp and tuner sit on top of the cdp...had no time to build a rack yet 🙁. And the whole lot sits 4 or 5ft back from the speakers.
I guess another option would be to build a big heavy enclosure for the cdp, but by the time I get to that stage Ill be wanting to move onto a cdpro2 with a seperate dac, or whatever is about in the future.
Steve
Elso Kwak said:
And I though I was starting to run out of things to do!! 😀
Any thoughts on how to go about damping IC's? Or would it be best to concentrate on what the CD player sits on? At the moment its on a 1" thick slab of granite, which is on a big heavy chest of drawers (full of enough random crap that I cant pick it up), and the amp and tuner sit on top of the cdp...had no time to build a rack yet 🙁. And the whole lot sits 4 or 5ft back from the speakers.
I guess another option would be to build a big heavy enclosure for the cdp, but by the time I get to that stage Ill be wanting to move onto a cdpro2 with a seperate dac, or whatever is about in the future.
Steve
Re: Re: Re: Re: Re: Carbon Resistors in KWAK-CLOCK, Not funny?
They are carbon film
Elso Kwak said:
They are carbon film
Hey Elso,
you might want to check out the nice features this forum engine provides.
You can create your buddy list, but more importantly an ignore list.
Works for me, aaahhh, silence at last 😀
BTW, how did v8 turn out ?
PS, I've used whatever resistors I had lying around, never noticed any difference.
As always YMMV, please let us know YOUR experiences.😎
you might want to check out the nice features this forum engine provides.
You can create your buddy list, but more importantly an ignore list.
Works for me, aaahhh, silence at last 😀
BTW, how did v8 turn out ?
PS, I've used whatever resistors I had lying around, never noticed any difference.
As always YMMV, please let us know YOUR experiences.😎
Buddy/Ignore List
Hi Rudolf,
Thanks, but I am having a great time😉
I don't use the above features.
rbroer said:
Hi Rudolf,
Thanks, but I am having a great time😉
I don't use the above features.
rbroer said:
That's funny,
You ignore my posts but you reply my emails, especially those about the PCBs you sell 🙄
What's the stock frequency of the crystal?
I suspect this thread has been dead for some time now, but I was wondering if you had the crystal's frequency for this player. I just got a deal on an RCD-02 the other day and.... 🙂
I suspect this thread has been dead for some time now, but I was wondering if you had the crystal's frequency for this player. I just got a deal on an RCD-02 the other day and.... 🙂
- Status
- Not open for further replies.