what can i substitute the MJL4302A and the MJL4281A with? - diyAudio
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Old 1st January 2005, 05:30 AM   #1
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Default what can i substitute the MJL4302A and the MJL4281A with?

Hi!
im currently ordering all the parts im gonna need for building the ESP P3a amp.

unfortunatly i'm not getting a hold of the MJL4302 end MJL4281A, or the suggested repalcements 2SA1216 and 2SC2922.

im gonna place the order shortly, but need a replacement!
i'm thinking about going for the BUW12 and its PNP complimentary..

I'm really hoping it's possible to just swap trnsistors, but offcours it isn't.. any sugestions?

regards
a overly tierd marius
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Old 1st January 2005, 05:39 AM   #2
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MJL21194/MJL21193

MJ15003/MJ15004

MJL21196/MJL21195


I GUESS THIS THINGS MIGHT WORK.
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Old 1st January 2005, 05:46 AM   #3
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Hi Hienrich!

thanks for helping out!

unfortunatly the place i'm ordering from dont have'm..

any other transistor that you can think of?

regards
marius
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Old 1st January 2005, 05:55 AM   #4
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well, i really have to order now, so i went for the original project 3 output devices. the MJE 2955T\3055T

I'l order the others in time i guess, when i can get them.

regards
marius
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Old 1st January 2005, 06:04 AM   #5
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dun use the 3055s and 2955s...they wun be as good...get the original parts from Onsemi...
www.onsemi.com
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Old 1st January 2005, 06:07 AM   #6
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i thinhk li_gangyi's right he thinks what i think. before what i think!!!!
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Old 1st January 2005, 06:09 AM   #7
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Can't..

you have to pay shipment for samples right?
and then you have to use a visa, and i'm 17, so i dont have a visa..

guess i'l wait untill this summer when i turn 18 with getting the original parts from on-semi.

-marius
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Old 1st January 2005, 06:16 AM   #8
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by the way what devices are now at you hands. if you think that you in doubt with that just try to look for its specs in the net.

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Old 1st January 2005, 06:16 AM   #9
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until then, the MJE 2955T\3055T will work.. right?
just not as good..
i bought 4 pears, needing only one pear per chanel, guess i could paralell two pairs to make up for missing power handeling. (right?)

Hienrich: i dont really have anything i could use as of right now.. only some darlingtons, but because og their high gain, they are not sutable for this amp i think..
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Old 1st January 2005, 06:21 AM   #10
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yes, it good to have two pairs than one, even with 8 ohm loads.
for a rather cooler operation for a long time. are these devices prefered for the project? if so then , go on. force cooling is also a must.
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