KSC-2310 on SX-1250

supergilson

Active Member
The transistor replacement lists I have for the SX-1250 use KSC-2310 on the power amp board and on the stabilizer board (Q2, Q10, Q13).

It isn't available from Mouser anymore. Is there another replacement for those transistors?
 
My sx-1250 awr-106 power supply parts list from my notes:

q2, q10, q13 ksc2310 > ksc2383 darlington drivers for NPN power pass transistors, Yes...


sx-1250 power supply stabilizer ok
sx-1250 awr-106 c1 220 80 cea 220 100 647-UPW2A221MHD
sx-1250 awr-106 c2 220 80 cea 220 100 647-UPW2A221MHD
sx-1250 awr-106 C5 47 35 cea 47 35 647-UPW1V470MED
sx-1250 awr-106 C6 47 35 cea 47 35 647-UPW1V470MED
sx-1250 awr-106 C7 22 50 cea 22 50 647-UPW1H220MDD
sx-1250 awr-106 C8 22 50 cea 22 50 647-UPW1H220MDD
sx-1250 awr-106 C9 100 35 cea 100 50 647-UPW1H101MPD
sx-1250 awr-106 C10 100 35 cea 100 50 647-UPW1H101MPD
sx-1250 awr-106 C11 47 80 cea 47 100 647-UPW2A470MPD
sx-1250 awr-106 C12 47 80 cea 47 100 647-UPW2A470MPD
sx-1250 awr-106 C13 1000 25 ceb 1000 35 647-TVX1V102MCD
sx-1250 awr-106 C15 47 10 cea 47 10 647-UPW1A470MDD6
sx-1250 awr-106 C16 22 10 cea 22 10 647-UPW1A220MDD
sx-1250 awr-106 C17 220 16 cea 220 25 647-UPW1E221MPD1TD
sx-1250 awr-106 C18 47 10 cea 47 10 647-UPW1A470MDD6
sx-1250 awr-106 C19 47 10 cea 47 10 647-UPW1A470MDD6
sx-1250 awr-106 q1 2sd313 pass +65 512-KSC2073TU
sx-1250 awr-106 q2 2sc869 darl 512-KSC2383YTA
sx-1250 awr-106 q3 2sc1318 err-amp 512-KSC1845FTA
sx-1250 awr-106 q4 2sc1384 pass +25 512-KSC2690AYS
sx-1250 awr-106 q5 2sb507 pass -65 512-KSA940TU
sx-1250 awr-106 q6 2sa628 darl 512-KSA1013YBU
sx-1250 awr-106 q7 2sa720 err-amp 512-KSA992FBU
sx-1250 awr-106 q8 2sa684 pass -25 512-KSA1220AYS
sx-1250 awr-106 q9 2sd325 pass +13 512-KSC2073TU
sx-1250 awr-106 q10 2sc945 darl 512-KSC2383YTA
sx-1250 awr-106 q11 2sc945 err-amp 512-KSC1845FTA
sx-1250 awr-106 q12 2sd325 pass +5.5 512-KSC2073TU
sx-1250 awr-106 q13 2sc945 darl 512-KSC2383YTA
sx-1250 awr-106 d1 wz-240 512-1N5252B
sx-1250 awr-106 d3 wz-240 512-1N5252B
sx-1250 awr-106 d5 wz-061 512-1N5234B
sx-1250 awr-106 d2 1s2473 512-1n4148
sx-1250 awr-106 d4 1s2473 512-1n4148
sx-1250 awr-106 vr1 4.7k 1 turn 652-3386H-1-502LF
sx-1250 awr-106 vr2 4.7k 1 turn 652-3386H-1-502LF
sx-1250 awr-106 R13 680 2W mox 660-MO2C681J
sx-1250 awr-106 R14 1.5K 2W mox 660-MO2C152J
sx-1250 awr-106 R18 100 2W mox 660-MO2C101J
sx-1250 awr-106 R15 3.3k>5.6k 3W ew, bleeders 588-TUM3J5K6E
sx-1250 awr-106 R16 3.3k>5.6k 3W ew, bleeders 588-TUM3J5K6E
 
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I can tell by the format of the notes that these parts are categorized in a hierarchical arrangement. I can guess that we've only seen the tip of the iceberg. I hope these are backed up securely somewhere.
 
funny you should mention that, I was a bit remiss and an entire block of files disappeared from the sub directory. luckily they were just manual pdf's (and I know where to get them when I need them), but a years worth of unknown random acquisitions - poof- and I don't know how...
The reason it was only a year is that at the end of 2013 I did a backup...


when I grab a bit of breathing room I have to reconcile several backup directories and original directories, and make them all the latest.
AFTER I browbeat AT&T to give me BACK my 1.5mbps download speed, about 2 weeks ago they mysteriously cut me back to 0.768 service, and tech service tells me I am only entitled to 128 to 768 kbps download speed, while BILLING said I am "speed UP TO 1.5mbps".

It's ABOUT TIME I give AT&T the black eye it deserves.

They want me OFF my landline P.O.T.S. and dedicated pair DSL (from 2001) service onto u-verse, and it looks like they took off the gloves. BTW I have NO cable service (or want it) - I get along fine with a rooftop antenna. Haven't got time for a lot of TV... I especially don't want U-Verse's IP multicast client: 4 streams max.
 
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