to what values I should go with irfp 9610

elviukai · 9th June 2003, 08:11 AM

I have just build zen v4. I can nowhere find zvp 3310

what mosfet with low capasistance like nelso said i shuld use? now I use irfp 9610. how much I should lower values of r 1,r3 original is 47.5 and 221k. I underatand that first would be 10k, but 221k. to what, nelson didnt said concrete.

and anybody has few spare zvp 3310?

I would pay 5eur/each.

and my transformesr doesnt take 1.5,or2,or3 a fuses, they only take 6-8a<. not heating, no problems, but they doesnt take anything lower thatn 6A, where is a problem? they are toroids 250VA each. bypased with wima 400v. thanks for any help

good luck in projects. I am happy with zen. except bass responce and some kind of discortions, but they are friendly to my ears.

Tazzy · 9th June 2003, 09:51 AM

I chose the Tube route when I couldn't find the ZVP's...

Makes the ZenV4 a bit more expansive though

Panelhead · 9th June 2003, 10:11 AM

and anybody has few spare zvp 3310?

I would pay 5eur/each.

Send your mailing address, and I will send you 3 to get started. They are cheap from Digi-kEY in the US.

Double check those fuse sizes. It sounds like the current ratings are for the output side and not the input. With your 230 volt mains, a 1 amp fuse is close to correct. A three amp is way too large. The smoke will comer out of everything way before the fuse goes.

George

elviukai · 10th June 2003, 06:35 AM

hello, I would very happy for zvp. I know they are cheap, but its matter of finding in europe..

my email is rollas@mail.lt

cHoc · 10th June 2003, 10:22 AM

Farnell sells them, but only in a SOT-23 pakage

MOSFET P SOT-23 ZVP3310F € 0,56

www.farnell.com
or directly for the Italian page
http://international2.farnell.com/IT...gistered.jhtml
and search for zvp 3310 (with the spacing)

elviukai · 10th June 2003, 11:35 AM

I fuse transformers input- from 220v to transformers input, not output!
is this very bad??

my amp works without problems, so shopudI fuse tranformers output?

Andypairo · 10th June 2003, 12:20 PM

It looks like a inrush current problem... you can find very useful posts about it using the search function

Cheers

Andrea

9th June 2003, 08:11 AM	#1
elviukai diyAudio Member Join Date: Apr 2003 Location: EU- Electronic Union country	to what values I should go with irfp 9610 I have just build zen v4. I can nowhere find zvp 3310 what mosfet with low capasistance like nelso said i shuld use? now I use irfp 9610. how much I should lower values of r 1,r3 original is 47.5 and 221k. I underatand that first would be 10k, but 221k. to what, nelson didnt said concrete. and anybody has few spare zvp 3310? I would pay 5eur/each. and my transformesr doesnt take 1.5,or2,or3 a fuses, they only take 6-8a<. not heating, no problems, but they doesnt take anything lower thatn 6A, where is a problem? they are toroids 250VA each. bypased with wima 400v. thanks for any help good luck in projects. I am happy with zen. except bass responce and some kind of discortions, but they are friendly to my ears. __________________ natural sound reproduction from traditional dynamic drivers?!! come on.. no no, it can be.. it must be!..

9th June 2003, 10:11 AM	#3
Panelhead diyAudio Member Join Date: Dec 2002 Location: Houston	Re: to what values I should go with irfp 9610 and anybody has few spare zvp 3310? I would pay 5eur/each. Send your mailing address, and I will send you 3 to get started. They are cheap from Digi-kEY in the US. Double check those fuse sizes. It sounds like the current ratings are for the output side and not the input. With your 230 volt mains, a 1 amp fuse is close to correct. A three amp is way too large. The smoke will comer out of everything way before the fuse goes. George

10th June 2003, 06:35 AM	#4
elviukai diyAudio Member Join Date: Apr 2003 Location: EU- Electronic Union country	panh hello, I would very happy for zvp. I know they are cheap, but its matter of finding in europe.. my email is rollas@mail.lt __________________ natural sound reproduction from traditional dynamic drivers?!! come on.. no no, it can be.. it must be!..

10th June 2003, 11:35 AM	#6
elviukai diyAudio Member Join Date: Apr 2003 Location: EU- Electronic Union country	I dont even though about it! I fuse transformers input- from 220v to transformers input, not output! is this very bad?? my amp works without problems, so shopudI fuse tranformers output? __________________ natural sound reproduction from traditional dynamic drivers?!! come on.. no no, it can be.. it must be!..

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9th June 2003, 09:51 AM	#2
Tazzy diyAudio Member Join Date: Jul 2002 Location: Netherlands	I chose the Tube route when I couldn't find the ZVP's... Makes the ZenV4 a bit more expansive though

10th June 2003, 10:22 AM	#5
cHoc diyAudio Member Join Date: Apr 2007	Farnell sells them, but only in a SOT-23 pakage MOSFET P SOT-23 ZVP3310F € 0,56 www.farnell.com or directly for the Italian page http://international2.farnell.com/IT...gistered.jhtml and search for zvp 3310 (with the spacing)

10th June 2003, 12:20 PM	#7
Andypairo diyAudio Member Join Date: Sep 2002 Location: near Milano , Italy	It looks like a inrush current problem... you can find very useful posts about it using the search function Cheers Andrea

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