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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There are some odd things on your list. This package is a TO and the other one has a TO What part is on the messed up board? Do you see any gain numbers on any of those parts? Per datasheets available online they are both center collector 2sa http: Log in or Sign up. Are those Qe the drivers? 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.
On the board I’m working on, Qe7 says a and Qe8 says a and both are very obvious poorly done replacements. Here are the datasheets for the outputs. The a also says “5E C4”.
Hitachi Semiconductor – datasheet pdf
I was wondering if someone would bring that up. Qe 2sa are your differential pairs.
Those two transistors simply have “A” printed on them – I’m assuming they are 2sa Yea GR it looks like. Yes, 2s There are replacements but you have to be sure if the center is a base or a collector. I asked a question about the outputs earlier today.
The a also says “GR 5K”. Thank you very much for any help on this! Lots of room for those. I really appreciate your taking the time to help me with this. Are there any markings that tell the gain of the part that you can read?
As you can tell I’m new to this. The other one has the wrong pin out. Have also attached a scan of the power amp schematic. You need 2s8a72 collector in the center. My understanding is that Kenwood and likely others used what they could get their hands on at the time.
You want to use the complementary pairs listed datawheet the datasheet. Yes, my password is: Is a TO bigger than a TO? Share This Page Tweet. You have Qe 7,8 as 2sa but on the schematic it says 2sa WB.
Yeah, that’s 2ssa872 reason I I’m looking at the other board. No, create an account now. I would like to replace all of the transistors on the power amp board. Am i correct in assuming “2s” should be in front of those?
SoundOfSoundJan 11, I bought a rather hacked KR 2saa872 blown outputs on the left channel. Can you determine if Qe 7,8 have the collector or the base at the center pin. 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’m getting conflicting information about a replacement. You must log in or sign up to reply here.
I don’t feel very confident about my sub for Qe19,20 – there is no datasheet available. Do you already have an account? 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. I can order the caps myself, but need some help with the transistors. Curious what you think about my selection on those. Discussion in ‘ DIY ‘ started by gort69Jan 11, 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.
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