PPI A600 Transistors? c2344 and a1011

corradolvr · 28th June 2007, 03:27 PM

Does anybody know what the replacements for these are? I have nte398 for a1011 and nte375 for the c2344. Is this correct? I know there is some Art Series fanatics out there! Thanks.

1moreamp · 28th June 2007, 11:39 PM

you should do a search using your browser to find these. they are fairly common place at ampslab here :

http://www.ampslab.com/trans_2sa1011.htm

plus other places like www.acecomponents.com , and many other places even here on this forum under the market place and electronics and parts .
if you have to they most probably can be replaced with the same device as the outputs, or a TIP-41C & 42C as I have seen in many other amps like Hifonics etc.... its the insulated case thats special about that device make sure you have insulators underneath it if you use a replacement that has a metal base.

hope this helps

corradolvr · 29th June 2007, 01:11 AM

Thanks for the help! I checked the specs and everything looks good. I checked the thermal compound in the case and there was a insulator in there. Looks like maybe they have been replaced before? Anyway I appreciate the help.

ppia600 · 30th June 2007, 03:26 PM

Great amplifier, I have one running my four mids and tweeters, I wish I hadn't sold my last one.

corradolvr · 30th June 2007, 06:02 PM

It is nice. I'm just waiting for parts now. I can't wait to get it up and running. I'm replacing the a1011, c2344, fesf8dt, bdt81, bdt82, and irfz34 components. I figure i might as well do all these while I'm in there. I'm using nte398 and nte375 to replace a1011 and c2344. NTE597 will replace the fesf8dt. I found IR irfz34, bdt82, and bdt81. I wanted to use irfz44 for the irfz34 but I could not find them except for bulk. Does this sound like it will work?

Thanks,

Corradolvr, CET

1moreamp · 30th June 2007, 09:44 PM

yeah you can use Z44's instead of Z34's with little issue

corradolvr · 30th June 2007, 10:51 PM

Does everything else look alright? I checked the specs, but if anyone else knows better let me know. Thanks.

ppia600 · 1st July 2007, 03:13 AM

Yeah, but I'd definately replace all of the output transistors at the same time, at least for the bad channel. I'm sure someone already said it, but try to get them all from the same batch with same date codes stamped on them. Also be sure to replace all of the power supply transistors at the same time, it will definately be worth it and cheaper in the long run because you won't be replacing them again.

corradolvr · 1st July 2007, 06:30 PM

I'm just gonna replace everything in there. I figure it can't hurt. It will be a fine running machine when I get it done. I'll put it on the service monitor and and give it a thorough test.

kainoasun · 3rd July 2007, 02:44 PM

Hey Corradolvr.... How much did all the transistors cost? I'm trying to get a ball park figure before I send my A600 in to get fixed. I'd do it myself but don't have experience fixing electronics..In my post you said your PPI was like new after replacing the transistors so I may recommend your part numbers when I send it in.

BTW, I've been a Corrado lover since 1989!! Had three since then. Got an old school G-60 in my garage that my PPI came out of. So my experience is more in wrenching and tuning rather than electronics.

Have a great day....Spoilers up!

JK

28th June 2007, 03:27 PM	#1
corradolvr diyAudio Member Join Date: Jun 2007	PPI A600 Transistors? c2344 and a1011 Does anybody know what the replacements for these are? I have nte398 for a1011 and nte375 for the c2344. Is this correct? I know there is some Art Series fanatics out there! Thanks.

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28th June 2007, 11:39 PM	#2
1moreamp diyAudio Member Join Date: Dec 2005 Location: Northern California	you should do a search using your browser to find these. they are fairly common place at ampslab here : http://www.ampslab.com/trans_2sa1011.htm plus other places like www.acecomponents.com , and many other places even here on this forum under the market place and electronics and parts . if you have to they most probably can be replaced with the same device as the outputs, or a TIP-41C & 42C as I have seen in many other amps like Hifonics etc.... its the insulated case thats special about that device make sure you have insulators underneath it if you use a replacement that has a metal base. hope this helps

29th June 2007, 01:11 AM	#3
corradolvr diyAudio Member Join Date: Jun 2007	Thanks for the help! I checked the specs and everything looks good. I checked the thermal compound in the case and there was a insulator in there. Looks like maybe they have been replaced before? Anyway I appreciate the help.

30th June 2007, 03:26 PM	#4
ppia600 diyAudio Member Join Date: Jun 2007 Location: Louis y ana	Great amplifier, I have one running my four mids and tweeters, I wish I hadn't sold my last one.

30th June 2007, 06:02 PM	#5
corradolvr diyAudio Member Join Date: Jun 2007	It is nice. I'm just waiting for parts now. I can't wait to get it up and running. I'm replacing the a1011, c2344, fesf8dt, bdt81, bdt82, and irfz34 components. I figure i might as well do all these while I'm in there. I'm using nte398 and nte375 to replace a1011 and c2344. NTE597 will replace the fesf8dt. I found IR irfz34, bdt82, and bdt81. I wanted to use irfz44 for the irfz34 but I could not find them except for bulk. Does this sound like it will work? Thanks, Corradolvr, CET

30th June 2007, 09:44 PM	#6
1moreamp diyAudio Member Join Date: Dec 2005 Location: Northern California	yeah you can use Z44's instead of Z34's with little issue

30th June 2007, 10:51 PM	#7
corradolvr diyAudio Member Join Date: Jun 2007	Does everything else look alright? I checked the specs, but if anyone else knows better let me know. Thanks.

1st July 2007, 03:13 AM	#8
ppia600 diyAudio Member Join Date: Jun 2007 Location: Louis y ana	Yeah, but I'd definately replace all of the output transistors at the same time, at least for the bad channel. I'm sure someone already said it, but try to get them all from the same batch with same date codes stamped on them. Also be sure to replace all of the power supply transistors at the same time, it will definately be worth it and cheaper in the long run because you won't be replacing them again.

1st July 2007, 06:30 PM	#9
corradolvr diyAudio Member Join Date: Jun 2007	I'm just gonna replace everything in there. I figure it can't hurt. It will be a fine running machine when I get it done. I'll put it on the service monitor and and give it a thorough test.

3rd July 2007, 02:44 PM	#10
kainoasun diyAudio Member Join Date: Jul 2007	Hey Corradolvr.... How much did all the transistors cost? I'm trying to get a ball park figure before I send my A600 in to get fixed. I'd do it myself but don't have experience fixing electronics..In my post you said your PPI was like new after replacing the transistors so I may recommend your part numbers when I send it in. BTW, I've been a Corrado lover since 1989!! Had three since then. Got an old school G-60 in my garage that my PPI came out of. So my experience is more in wrenching and tuning rather than electronics. Have a great day....Spoilers up! JK

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