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Transistor Sub Help Please – Kenwood KR-7600

Yes, 2s There are replacements but you have to be sure if the center is a base or a collector. I’m also hoping someone can point out which are the differential pairs so that I can order a bunch of them to match them up. I really appreciate your taking the time to help me with this.

Curious what you think about my selection on those. You want to use the complementary pairs listed on the datasheet. Yea GR it looks like.

Hitachi Semiconductor

The a also says “GR 5K”. Share This Page Tweet. You must log in or sign 2sq872 to reply here. Do you already have an account? Those two transistors simply have “A” printed on them – I’m assuming they are 2sa Log in or Sign up. I’m getting conflicting information about a replacement. I bought a rather hacked KR with blown outputs on the left channel.

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Am i correct in assuming “2s” should be in front of those? Is a TO bigger than a TO? On the 2xa872 I’m working on, Qe7 says a and Qe8 says a and both are very obvious poorly done replacements.

2SA datasheet, Pinout ,application circuits Silicon PNP Epitaxial

This package is a TO and the other one has a TO I asked a question about the outputs earlier today. Per datasheets available online they are both center collector 2sa http: Can you determine if Qe 7,8 have the collector or the base at the center pin.

No, create an account now. My understanding is that Kenwood and likely others used what they could get their hands on at the time.

There are some odd things on your list.

Yes, my password is: I don’t feel very confident about dataxheet sub for Qe19,20 – there is no datasheet available. Since this board has been messed with so much, I pulled the power amp from another KR I have that is unmolested, and listed here what is actually installed on the board.


Your name or email address: Are those Qe the drivers? The a also says “5E C4”. I would like to replace all of the transistors on the power amp board.

Have also attached a scan of the power amp datashet. A previous owner has butchered this thing badly picture attached with all sorts of oddball replacements and beautiful soldering, so I would like to start over.

2SA Datasheet, Equivalent, Cross Reference Search. Transistor Catalog

Discussion in ‘ DIY ‘ started by gort69Jan 11, The other one has the wrong pin out. Do you see any gain numbers on any of those parts? I can order the caps myself, dxtasheet need some help with the transistors.

Are there any markings that tell the gain dahasheet the part that you can read? Here are the datasheets for the outputs. SoundOfSoundJan 11, Lots of room for those.