Transistor Substitutions in JVC AX-R450

[lateretroguy]

I am restoring a JVC-AX-R450. I need a Substitution for a A993 PNP. When I look it up on AI it shows a KSA-1220A But everybody is out of stock, What will work in its place? This is in the amp board.

 

[kwayde]

I am restoring a JVC-AX-R450. I need a Substitution for a A993 PNP. When I look it up on AI it shows a KSA-1220A But everybody is out of stock, What will work in its place? This is in the amp board.

I stay away from AI for various reasons. For one they aren't always correct and they will also make up answers if they don't know the correct one.

Go to epray and look for "New OnSemi Transistors for Vintage Stereo Repair All the common ones mix & match". He sells them and is an AK member. Very reliable.
I have never had a problem with him and I've bought numerous parts.

 

[redk9258]

Where in the unit is it used?

 

[lateretroguy]

 

[lateretroguy]

View attachment 3843361

It is in the lower left corner and it is deteriorating. This amp has a lot of hours on it.

 

[Nashou66]

you could use a KSA992 or KSA1013 both have a higher voltage rating .

 

[kwayde]

It is in the lower left corner and it is deteriorating. This amp has a lot of hours on it.

That says it's a 2sa933, not 2sa993.

 

[lateretroguy]

Ok, thanks

 

[Nashou66]

Id use the KSA1013

https://www.onsemi.com/pdf/datasheet/ksa1013-d.pdf

The 933 data sheet

https://rtellason.com/transdata/2sa1037ak.pdf

Nashou

 

[dlucy]

I stay away from AI for various reasons. For one they aren't always correct and they will also make up answers if they don't know the correct one.

Go to epray and look for "New OnSemi Transistors for Vintage Stereo Repair All the common ones mix & match". He sells them and is an AK member. Very reliable.
I have never had a problem with him and I've bought numerous parts.

This is teaching new hobbyists many lessons the hard, expensive way.

 

[lateretroguy]

Thanks, This belonged to my cousin that was killed in a car accident back in 1988 and it is the stereo is the only thing that we have that was his.

 

[lateretroguy]

What is a good substitute for a 2sb649. I believe the 1220 is obsolete

 

[dlucy]

For what application? What make, model and board?

 

[lateretroguy]

The amp board

 

[kwayde]

What is a good substitute for a 2sb649. I believe the 1220 is obsolete

Look on epray for ksa1220ays from seller peace.love.and.music.
He's an AK member and reliable.

No affiliation.

 

[Nashou66]

KTA1381 from Profusion.

You should keep all these questions in your other thread here .

 

[rcs16]

TTA004B,Q

 

[dlucy]

KTA1381 from Profusion.

You should keep all these questions in your other thread here .

@lateretroguy is this question about the JVC AX you're working on?

 

[Nashou66]

@lateretroguy is this question about the JVC AX you're working on?

I think so he posted this pic a few post ago.

 

[redk9258]

If this is for the driver transistors, TTA004B and TTC004B are great replacements.

Edited to correct P/N.