Transistor substitutes
2SA532 --- ZTX795A
2SA561 --- KSA733C (C-suffix= collector center)
2SA562 --- BC327
2SA606 ---
2SA640 --- ZTX795A or KSA992
2SA678----- KSA1015
2SA697 --- ZTX795A
2SA706 --- KSA1381ESTU, BD136
2SA725 --- KSA992FTA/-FBU, BC560
2SA726 --- KSA992FTA/-FBU, BC560
2SA733 --- KSA733C (C= collector center)
2SA745 --- MJ15004G, upgrade: MJ21193
2SA747 --- MJ21193G (for example AU-9900/11000 output)
2SA750 --- KSA992FBU
2SA818 --- KSA1381 (pin order!), KSA1142, (2SA0914?)
2SA839 --- MJE15035, 2SC1669
2SA847 --- KSA992
2SA850 --- KSA1013, KSA992
2sa872 - KSA992FTA
2SC875 ---ZTX694B
2SA896 --- KSA1381ESTU (pin order!)
2SA899 --- KSA1142, KSA1220AYS, KSA1381
2SA908 --- MJ21193G, MJ21195G (for example AU-20K output)
2SA914 --- KSA1142, KSA1381
2SA917 --- 2N5400 (pin order!)
2SA939 --- KSA1381, KSA1220AY
2SA945 - KSC945CGBU
2SA953 --- KSA931YTA
2SA958 --- ??
2SA968 --- MJE15033
2sa970 ecb ksa 992 ecb
2SA981 --- MJ21194G
2SA991 === 2SA1016K
2SA1011 --- 2SA1837 or MJE15035
2SA1104 --- MJL1302AG
2SA1105 --- 2SA1695
2SA1106 --- 2SA1695 (avail. fr. Digikey), NJW1302G
2SA1222 --- KSA1220AY
2SB327 --- KSA1220A
2SB507 --- MJE15033G
2SB507(E,F) --- KSA1010Y
2SB526 --- MJE15033
2SB527 --- MJE15033, KSA1220
2SB528 --- 2SA1837 (TO220,insulated case) KSA940
2SB536 --- KSA1304Y, MJE15033G
2SB537 --- MJE15031G
2SB545(A) --- MJ21193G
2SB595 MJE15033
2SC281 --- KSC1815
2SC458 --- 2SC1815 is best or 2SC2240, 2SC1345
2SC711 --- KSC1845, KSC2310, KSC945 Pinout difference! all ECB 711 is BCE
2SC735 --- BC337
2SC871 --- 2SC2240, KSC1845, or even BC549C or BC550C (pin out differences!)
2SC875 --- ZTX694B
2SC900 --- KSC1815
2SC945 --- EBC -- KSC1815YTA EBC or KSC945C ECB
2SC959
2SC968 --- KSC2383 ECB, KSD1616 ECB
2SC983 --- KSC1845 ECB
2SC984 —> KSC2383
2SC1116 --- MJ21194G (for example AU-9900/11000 output)
2SC1124 --- KSC2073 or MJE15032
2SC1210 --- KSC3503
2SC1211 --- KSC2383
2SC1222 --- KSC1845EBU
2SC1312 --- KSC1815, KSC1845
2SC1313 --- KSC1815 preferably or KSC1845FTA (Must install them backwards of original 2SC1313 which is BCE the KSC1845FTA is ECB.)
2SC1364 --- KSC945C (best if used on protection board), KSC2690 (for more demanding use)
2SC1400 --- KSC1845
2SC1402 --- MJ21194
2SC1403A--- MJ15003G, upgrade MJ21194
2SC1451 --- KSC3503
2SC1585 --- MJ21194G, MJ21196G (for example AU-20K output)
2SC1628 --- KSC3503 (pin order!), (2SC1953?)
2SC1669 --- MJE15034
2SC1708 --- KSC1845
2SC1735 --- KSC2383, KSC1845
2SC1775 - KSC1845EBU
2SC1811 --- KSC3503ESTU
2SC1844 --- 2SC2362
2SC1904 --- KSC3503, KSC2690AY
2SC1951 --- ZTX694B
2SC1953 --- KSC2682, KSC3503
2SC1983 --- TIP112F or KSD1273Q
2SC2071 --- KSC3503, KSC2690AY
2SC2238 --- MJE15032
2SC2240 --- KSC1845
2SC2261 --- MJ21193G
2sc2291 ecbce ksc 1845 ecb match pairs
2SC2344 --- 2SC4793 or MJE15034
2SC2579 --- MJL3281AG
2SC2580 --- 2SC4468
2SC2581 --- 2SC4468 (avail. fr. Digikey), NJW3281G
2SD188(A) --- MJ21194G
2SD247 --- MJ15003G
2SD313(E,F) --- KSC2334Y
2SD356 --- MJE15032
2SD358 --- KSC2690
2SD357 --- KSC2690A, KSC2073
2SD381 --- KSC3296Y, MJE15032
2SD382 --- MJE15030G, MJE15032
2SD525 MJE15032
2sd438 d,e, ksc2690a
2sd438 -- ksc2383
2sb560 -- ksa 1013
2sc536 -- ksc 1815
2sc2274 -- ksc2690a
2sk109 --- 2n3819 use 2 and they will work. they are N-channel JFET type. the basing
for the transistor (from front) is D,G,S. the IC pin out is 1=D, 2=G and 3=S and
then pin 7=D, 6=G and 5=S for the other side.
Or 2SK150 - M47F - 2SK389GR
XA495 --- ZTX795A
Diodes/rectifiers:
10D1 --- 1N5392, 1N5393
10D2 --- 1N5392, 1N5393
10D4 --- 1N5404
30D2 --- 1N5402G
1N60 --- BAT41
1S953 --- 1N4148
1s1555 --- 1n4148
1S1588 --- 1S2473, 1N4148
1S2473 ---- 1N4148, 1N4149
DS430 --- 1N4148
VD1212 --- 2pcs of 1N4148 connected in series
1S1850 --- MUR1620CTG (TO220) - or use 1N5393G (200V 1.5A) or 2A03 (200V/2A) to make your own Common Cathode -diode pack
1S1850R --- MUR1620CTRG (TO220) - or use 1N5393G (200V 1.5A) or 2A03 (200V/2A) to make your own Common Anode -diode pack
SS3
SS3R
SV02 pair of 1N4148
Zeners
EQA01-20R --- 1N5932
EQB01-22 --- BZV85-C22 or 1N4748A
RD9.1E --- BZX79B9V1 or maybe 1N5239
RD9A --- 1N5238B
RD-13A --- TZX13A-TR
RD-15E --- ??? Maybe 1N5245BTR, comments?
RD-22E --- ??? Maybe 1N5251BTR, Comments?
RD-33E