2SA datasheet, 2SA circuit, 2SA data sheet: HITACHI – Silicon PNP Epitaxial,alldatasheet, datasheet, Datasheet search site for Electronic. 2SA Datasheet, 2SA PNP Low Frequency Transistor Datasheet, buy 2SA Transistor. 2SA, PNP 2SA, 2SA PNP Low Frequency Transistor, buy 2SA RoHS Compliant, -. Package Type, TO Technical Data, 2SA Datasheet.

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What part is on datsaheet messed up board? Share This Page Tweet. This package is a TO and the other one has a TO The other one has the wrong pin out.

2SA 데이터시트(PDF) – Hitachi Semiconductor

You have Qe 7,8 as 2sa but on the schematic it says 2sa WB. Curious what you think about my selection on those. Your name or email address: Can you determine if Datashert 7,8 have the collector or the base at the center pin.

Discussion in ‘ DIY ‘ started by gort69Datassheet 11, My understanding is that Kenwood and likely others used what they could get their hands on at the time.

Are there any markings that tell the gain of the part that you can read? You want to use daasheet complementary pairs listed on the datasheet. Log in or Sign up. The a also says “5E C4”.


I asked a question about the outputs earlier today.

Silicon PNP Epitaxial

As you can tell I’m new to this. No, create an account now. Thank you very much for any help on this! I really appreciate your taking the time to help me with this. Yea GR it looks like. Per datasheets available online they are both center collector 2sa http: Am i correct in assuming “2s” should be in front of those?

Yes, my password is: Do you see any gain numbers on any of those parts? Is a TO bigger than a TO? I have spent a fair amount of time searching the forum for subs, but am hoping someone can look over my list and point out errors, make better recommendations, or comment otherwise. Yes, 2s There are replacements but you have to be sure if the center is a base or a collector.

There are some odd things on your list. Are those Qe the drivers?

You need the collector in the center. Here are the datasheets for the outputs. Have also attached a scan of the power amp schematic.

2SA Hitachi Silicon PNP Epitaxial amplifier ChipFind Datasheet Archive |

Yeah, that’s a reason I I’m looking at the other board. I don’t feel very confident about my sub for Qe19,20 – there is no datasheet available. I would like to replace all of the transistors on the power amp board.


I bought a rather hacked KR with blown outputs on the left channel. SoundOfSoundJan 11, Lots of room for those. Since datasgeet 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. I’m getting conflicting information about a replacement.

Those two transistors simply have “A” printed on them – I’m assuming they are 2sa I was wondering if someone would bring that up. You must log in or sign up to reply here. 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. Qe 2sa are your differential pairs.

Transistor Sub Help Please – Kenwood KR-7600

On the board I’m working on, Qe7 says a and Qe8 says a and both are very obvious poorly done replacements. I can order the caps myself, but need some help with the transistors. The a also says “GR 5K”.

Do you already have an account? 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.