| Stefanoo |
Hello to everybody.
I'm building my P1.7 preamplifier.
I'.ve just finished to design the PCB and now i need to put everything together and test the system and do the necessary refinements.
I would need to know how to get those parts MATCHED...or...at least get some...and then i will match them by myself.
Is there anybody on the forum that could sell me a stock of this "s" version that, apparentaly,from the research that i have made here, they seem to be the most suitable for this project?!
(anyway any suggestion on this point over better parts are welcome)
In case nobody has the parts, where can i get those mosfet?
Digikay has the IRF but not the s version.
Consider that i'm from italy....who's a good dealer?
Where can i buy...let's say....20 for each one?
same thing for the BJT ztx...i would like to match them as well.
I hope somebody would supply me with those parts.
Best,
Stefano. |
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| Stefanoo |
i noticed just now that i can buy the s version on digikay, but the problem is that it fixes the minimum quantity at about 400unit (a little too much for me :) )
Could anybody help me to get the 9610s and 610s and the ztx550 and 450?
Thanks a lot.
Best,
Stefano. |
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| Zen Mod |
| quote: | Originally posted by Stefanoo
i noticed just now that i can buy the s version on digikay, but the problem is that it fixes the minimum quantity at about 400unit (a little too much for me :) )
Could anybody help me to get the 9610s and 610s and the ztx550 and 450?
Thanks a lot.
Best,
Stefano. |
you really don't need ztx-es; use whatever from BC family-I'm sure that you can find them in any tobacco store on next corner....... BC550C/560C are more than adequate
regarding IRF......what's exactly meaning of "s" ?
I'm pretty sure that Papa is ROTFLMAO or whatever zillionth time .......hehe - I remember also asking him in PM about adequate mosfets for A30......... |
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| JC Fardo |
Ciao Stefanoo
I found ztx´s from Farnell, P/N 358-137/358-230 (minimum order of 5 I think) and matched IRFs from Rick Tepstra http://www.rt-audio.nl/ or Marcel, "tarasque" on this forum.
Cheers |
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| Peppe |
| quote: | Originally posted by Stefanoo
Where can i buy...let's say....20 for each one?
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If you want to buy both, the best way I found is:
http://www.rs-components.it
If you order minimum 25 pcs the costs are (each):
IRF9610: 2,13€
IRF610: 1,15€ (not IR 0,82€)
You can mach by yourself how NP teach:
http://www.passdiy.com/howto/matching.htm
Ciao |
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| Stefanoo |
thank you guys!
still waiting if somebody has ther source to share with me.
Also, i would like to know where i can get the ztx550 and 450 parts.
Thanks a lot! |
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| The Saint |
Hi
The IRF610s is the surface mounted version of the TO-220 package.
The amplifier module below uses the IRF610s and IRF9610s
You can see them at the middle back of the PCB.
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| Zen Mod |
| quote: | Originally posted by The Saint
Hi
The IRF610s is the surface mounted version of the TO-220 package.
................................ |
:worship: |
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| Stefanoo |
sorry guys...one question:
but the IRF parts that i could possibily buy from Farnell are the IFR9610 and IRF610...or...i think i might read something about this....they send you an equivalent manufacter by them? |
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| massimo |
| quote: | Originally posted by Stefanoo
sorry guys...one question:
but the IRF parts that i could possibily buy from Farnell are the IFR9610 and IRF610...or...i think i might read something about this....they send you an equivalent manufacter by them? |
I.R. IRF610PBF (Pb free I guess) 1 pc 1,79€ (+ vat); +25 pcs 0.95€ ea.
I.R. IRF9610PBF 1 pc 3.34€; +25 pcs 2.03€ ea.
Zetex ZTX450 1 pc 0.44€; +25 pcs 0.32€ ea.
Zetex ZTX550 1 pc 0.53€; +25 pcs 0.36€ ea.
Unfortunately Farnell in Italy sells only to companies, not to poor guys as we are :rolleyes:
P.S. International Rectifiers had been recently bought by Vishay group, but the products remain the same (at least today) |
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| Nordic |
| I stand corrected. |
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| JC Fardo |
| quote: | Originally posted by massimo
Unfortunately Farnell in Italy sells only to companies, not to poor guys as we are :rolleyes:
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Are you sure? I´ve put orders to Farnell do Brasil several times. Some components are from local stock, other are imported with longer lead time. I just had to register logname and password.
And yes, I got those ZTX 550/450 from Farnell two weeks ago.
Unless Farnell proposes different sales rules to different countries I agree with you how frustrating is to source small quantities of components.
Hope this helps. Saluti :) |
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| massimo |
| quote: | Originally posted by JC Fardo
Are you sure? I´ve put orders to Farnell do Brasil several times. Some components are from local stock, other are imported with longer lead time. I just had to register logname and password.
And yes, I got those ZTX 550/450 from Farnell two weeks ago.
Unless Farnell proposes different sales rules to different countries I agree with you how frustrating is to source small quantities of components.
Hope this helps. Saluti :) |
Yes, I'm.
In Italy Rs and Distrelec sell to everybody, Farnell to companies only. And reason is not for the small quanties, it's just their policy
But this not a big problem if you someone working for them..... ;) |
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| Stefanoo |
massimo, could you help me to get the ztx?
Grazie tante.
Ciao,
Stefano. |
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| Zen Mod |
| quote: | Originally posted by Stefanoo
massimo, could you help me to get the ztx?
Grazie tante.
Ciao,
Stefano. |
Stefano-search what Papa sez about little bjts in his gadgets.........
buy what you can find around corner........
ECA VRT sez about this - replacements are:
BC 638, BC 640, 2SB647, 2SB1116(A), ++
I say-use BC546C and BC556C |
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| JC Fardo |
Thanks Mod for options.
If not found in any corner, fill keyword with ZTX*, BC*, *
Mouser
All my best |
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