need 2 transistors

elwabb · 7th February 2008, 04:16 AM

I am looking for a transistor marked J78(to-220)no idea what it is and a negative votage regulator KA7915,please help

linuxguru · 7th February 2008, 05:06 AM

It's a Renessas/Hitachi P-channel MOSFET, rated at 180V, 0.5A, 30W. There should be a wide variety of substitutes with similar or better specs.

elwabb · 7th February 2008, 05:41 AM

Thanks a Bunch.I was going krazy trying to figure out what it was.I am new to Electronics.

poynton · 7th February 2008, 07:56 AM

Quote:

Originally posted by elwabb
I am looking for ............... a negative votage regulator KA7915,please help

Standard negative regulator 15v.
Any 7915 of the correct current type will do.

Andy

jaycee · 7th February 2008, 05:55 PM

Be aware that simply dropping in new parts (im assuming you're repairing something - it sounds that way) wont neccesarily fix whatevers wrong, and you may just blow the new parts.

Of course, dont let that put you off starting electronics

elwabb · 7th February 2008, 06:35 PM

Any good Ideas on where to get them?because I live in one horse town.Thanks I"d really appriciated.

kvant · 7th February 2008, 07:29 PM

Quote:

Originally posted by elwabb
Any good Ideas on where to get them?because I live in one horse town.Thanks I"d really appriciated.

MCM or BDent

MOSFET / max Vgs
2SJ76 / 140V
2SJ77 / 160V
2SJ78 / 180V
2SJ79 / 200V

7th February 2008, 04:16 AM	#1
elwabb diyAudio Member Join Date: Feb 2008	need 2 transistors I am looking for a transistor marked J78(to-220)no idea what it is and a negative votage regulator KA7915,please help

7th February 2008, 05:41 AM	#3
elwabb diyAudio Member Join Date: Feb 2008	Thanks Thanks a Bunch.I was going krazy trying to figure out what it was.I am new to Electronics.

7th February 2008, 06:35 PM	#6
elwabb diyAudio Member Join Date: Feb 2008	transistors Any good Ideas on where to get them?because I live in one horse town.Thanks I"d really appriciated.

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7th February 2008, 05:06 AM	#2
linuxguru diyAudio Member Join Date: Sep 2007	It's a Renessas/Hitachi P-channel MOSFET, rated at 180V, 0.5A, 30W. There should be a wide variety of substitutes with similar or better specs.

7th February 2008, 05:55 PM	#5
jaycee diyAudio Member Join Date: Apr 2004 Location: Norwich, UK	Be aware that simply dropping in new parts (im assuming you're repairing something - it sounds that way) wont neccesarily fix whatevers wrong, and you may just blow the new parts. Of course, dont let that put you off starting electronics

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