Here's the list of parts I'm building, but there are some components available from 4 companies at the time sometimes, I'd like to know what are the best.
Partslist KWAK-CLOCK-7 with low noise regulators |Mfg Part#* |USD
1 resistor 47 Ohm metalfilm vishay/dale-xicon?
1 resistor 1k “
2 resistor 820 ohm “
2 resistor 2.7 k “
1 resistor 21.5 k “
3 resistor 27k “
1 resistor 100k “
1 resistor 10M “
1 pot 2k Spectrol type 64W 064W202 2.00x1
1 cap ceramic NPO 39 pF (marked 39) AVX/Xicon/NTE/Kemet?
1 cap ceramic NPO 68 pF (marked 68) AVX/Xicon/NTE/Mallory?
2 cap ceramic disc 0.01 µF (marked 103) AVX 10nF
8 cap ceramic 0.1 µF (marked 104) AVX/Xicon 100nF?
1 cap ceramic NPO 100pF (marked 100) AVX/Mallory/Xicon?
2 electrolytic cap 2200µF; 16V Vishay[Sprague/Roeder]/Wima/Panasonic?
2 cap 1µF polypropylene Vishay/Wima/Xicon?
2 inductor 2.2 mH (marked NEOSID 2,2k) RF chokes[fastron]-n/a[Vishay]?
1 FET J309 J309 0.42x1
1 IC AD8561AN AD8561AN(DigiKey) 5.70x1
1 transistor BC550C BC550CTA 0.06x1
1 transistor BC560C BC560CTA 0.06x1
2 IC LM431 TO-92 ? - NJR/? DIP-8?
3 ferrite bead BLM31AJ601SN1L 0.25x3
1 PCB ?Breadboard?(Local store or other)
*Can be found at Mouser if not specified
Partslist KWAK-CLOCK-7 with low noise regulators |Mfg Part#* |USD
1 resistor 47 Ohm metalfilm vishay/dale-xicon?
1 resistor 1k “
2 resistor 820 ohm “
2 resistor 2.7 k “
1 resistor 21.5 k “
3 resistor 27k “
1 resistor 100k “
1 resistor 10M “
1 pot 2k Spectrol type 64W 064W202 2.00x1
1 cap ceramic NPO 39 pF (marked 39) AVX/Xicon/NTE/Kemet?
1 cap ceramic NPO 68 pF (marked 68) AVX/Xicon/NTE/Mallory?
2 cap ceramic disc 0.01 µF (marked 103) AVX 10nF
8 cap ceramic 0.1 µF (marked 104) AVX/Xicon 100nF?
1 cap ceramic NPO 100pF (marked 100) AVX/Mallory/Xicon?
2 electrolytic cap 2200µF; 16V Vishay[Sprague/Roeder]/Wima/Panasonic?
2 cap 1µF polypropylene Vishay/Wima/Xicon?
2 inductor 2.2 mH (marked NEOSID 2,2k) RF chokes[fastron]-n/a[Vishay]?
1 FET J309 J309 0.42x1
1 IC AD8561AN AD8561AN(DigiKey) 5.70x1
1 transistor BC550C BC550CTA 0.06x1
1 transistor BC560C BC560CTA 0.06x1
2 IC LM431 TO-92 ? - NJR/? DIP-8?
3 ferrite bead BLM31AJ601SN1L 0.25x3
1 PCB ?Breadboard?(Local store or other)
*Can be found at Mouser if not specified
The only parts I would have a particular issue with are ones that carry the NTE brand - you never know whether what you are getting is what you think you should be getting.. For ceramic caps AVX, Xicon, and Kemet are all fine, perhaps look at the DA and impedances and choose one with the highest self resonance if given otherwise lowest ESL/ESR or both if provided.
Resistors, sprague, roederstein, vishay all made by divisions of vishay and all are good - probably buy on price.
Electrolytics oscons obviously, if too expensive look for a type designed for RF applications/ low impedance. I used tantalums in my clock, have yet to see whether that is a regretable decision.
Choosing smd parts can be difficult - I use the above criteria, cost and minimum buy quantities to decide which I will use.
Pcb quality and layout is tremendously important to the result. I recommend you lay out a pcb using expresspcb or similar - expresspcb will run less than $60 USD for miniboard service including shipping for the 3 resulting pcb, .. I use them all the time - http://www.expresspcb.com
Resistors, sprague, roederstein, vishay all made by divisions of vishay and all are good - probably buy on price.
Electrolytics oscons obviously, if too expensive look for a type designed for RF applications/ low impedance. I used tantalums in my clock, have yet to see whether that is a regretable decision.
Choosing smd parts can be difficult - I use the above criteria, cost and minimum buy quantities to decide which I will use.
Pcb quality and layout is tremendously important to the result. I recommend you lay out a pcb using expresspcb or similar - expresspcb will run less than $60 USD for miniboard service including shipping for the 3 resulting pcb, .. I use them all the time - http://www.expresspcb.com
Nothing in the Kwak clock runs on 120V, I think that comparator ic should not be run at much over +/- 5V for reliability. Standard 50V ceramics are fine. Do not use 50V parts on the line side of the power supply!
And for the 431s, there are some TO92 and some DIP-8, which ones should I use?
Hey, who deleted my Excel list I had practically completed, it took me 1/30 (2 hours) of my dialup time to search for them.
I'm gonna note here some of the things I changed in the list:
-Resistors: Xicon 1% part no.: 271-nb of ohms, minimum 10 at the time.
-Resistors: Can't find 10MOhm.
-Minimum nb. of parts column.
-Still can't find poly cap(Mouser search engine have problems with: µF & uF and 0.01, 0.1 & 1 are all the same).
Hey, who deleted my Excel list I had practically completed, it took me 1/30 (2 hours) of my dialup time to search for them.
I'm gonna note here some of the things I changed in the list:
-Resistors: Xicon 1% part no.: 271-nb of ohms, minimum 10 at the time.
-Resistors: Can't find 10MOhm.
-Minimum nb. of parts column.
-Still can't find poly cap(Mouser search engine have problems with: µF & uF and 0.01, 0.1 & 1 are all the same).
They don't have 5mOhm.
Inductors:
"Fastron High Reliability Radial RF Chokes RF CHOKE 2.2mH 5%"
or
"Xicon Radial RF Chokes RF CHOKE 2.2 mH"
Farnell, ... I have to send mail to them or call them(My father's phone bill...) to get some parts.
Inductors:
"Fastron High Reliability Radial RF Chokes RF CHOKE 2.2mH 5%"
or
"Xicon Radial RF Chokes RF CHOKE 2.2 mH"
Farnell, ... I have to send mail to them or call them(My father's phone bill...) to get some parts.
!$@%,
My CDP uses a 45MHz clock, and KC7 supports up to 24MHz. I would need to stop using the DAC 😡 and put a 16MHz in it.
Would there be a way to make it work with 45MHz?
My CDP uses a 45MHz clock, and KC7 supports up to 24MHz. I would need to stop using the DAC 😡 and put a 16MHz in it.
Would there be a way to make it work with 45MHz?
45.1584MHz KWAK-CLOCK
Hi Dragonmaster,
I can mail you the 45.1584 MHz version. You will need a new crystal though.
You have a Sony CDP?😎
DragonMaster said:
Hi Dragonmaster,
I can mail you the 45.1584 MHz version. You will need a new crystal though.
You have a Sony CDP?😎
Yes, Sony CDP-295, with the 2-pin high height Asahi crystal plugged in the DAC.
Are they quite the same? Because maybe I'll try to put a BB DAC after I put the clock, and I will put the Kwak Clock directly to the 16MHz.
Are they quite the same? Because maybe I'll try to put a BB DAC after I put the clock, and I will put the Kwak Clock directly to the 16MHz.
I can't find some 45.15MHz clocks for sale. I think I'll have to stick with my present clock, or buy some BB DACs($$$).
The I think I'll need to buy some BB DACs meant that I would stop using the internal DAC and use a 16MHz crystal.
What the heck is the problem, a site tells every 45MHz crystals are 15MHz ones on 3rd overtone, and an other makes monolithic 45MHz(And I can order samples from them).
http://www.ilsiamerica.com/C-monolithic_filter/mcf_p46.htm
And they're talking about Alcatel, the supposed really good DSL modems. I think I even saw ILSI somewhere.
I don't want to stop using the OLD Pulse DAC, since it sounds better than the DACs in my Sony
Receiver, and the one with integrated D/F in my Sony CDP-XE300.
Damn, they're advertising their PULSE DACs that sound worse and worse.
Note: I STILL[/] haven't removed the D/F of the CDP I want to mod because it separates the L and R chan (I think, the R chan passes in a 7404 after, maybe it's just 2 same outputs). (Sony CXD2554)
http://www.ilsiamerica.com/C-monolithic_filter/mcf_p46.htm
And they're talking about Alcatel, the supposed really good DSL modems. I think I even saw ILSI somewhere.
I don't want to stop using the OLD Pulse DAC, since it sounds better than the DACs in my Sony
Receiver, and the one with integrated D/F in my Sony CDP-XE300.Damn, they're advertising their PULSE DACs that sound worse and worse.
Note: I STILL[/] haven't removed the D/F of the CDP I want to mod because it separates the L and R chan (I think, the R chan passes in a 7404 after, maybe it's just 2 same outputs). (Sony
CXD2554)Strange . . . When the phones amp is disconnected, the spindle motor breaks so hard that the CD slides when it's stopping because the magnet is small.(What else I have to put a 1" 0.1W speaker on it to stop this)
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