Bill of Materials
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Component........Jaycar..Qty  Names
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7812...Pos Reg...ZV-1512...1..U3
LM317T.Pos Reg...ZV-1615...1..U4
BC548..NPN.......ZT-2154...1..Q1 or BC549
CAP....0.1uF.....RC-5490...8..C5 C6 C2 C7 C8 C9 C10 C11
CAP....47uF......RL-6434...1..C1
CAP....1uF.......RL-6414...1..C3
4 pin Header.....HM-3114...1..SK2
8 pin Header.....HM-3118...1..SK1
4 pin Plug.......HM-3124...1..SK2
8 pin Plug.......HM-3128...1..SK1
1N914..Sig Diode.ZR-1100...5..D4 D1 D2 D3 D10
1N4004..Diode....ZR-1004...2..D11 D12 or 1N4001
1N5404..Diode....ZR-1015...1..D5
1N5822..Diode....ZR-1023...4..D6 D7 D8 D9
LM324.. op amp...ZL-3324...1..U1
14 pin DIL Skt...PI-6454...1..U1
NE555P….Timer....ZL-3555...1..U2
8 pin DIL Skt....PI-6452...1..U2
4n33 Opto cplr...xx-xxxx...2..IC1 IC6
 I used the above or use
4n28 Opto cplr...ZD-1628...2..IC1 IC6
6 pin DIL skt....PI-6450...2..IC1 IC6
ORP12...LDR......RD-3480...3..LDR3 LDR1 LDR2
LED Red..........ZD-0150...1..
LED orange.......ZD-0169...1..
LED Green........ZD-0170...1..
LED Yellow.......ZD-0160...1..
Res-¼w..82R......RR-0546...1..R29
Res-¼w..560R.....RR-0566...2..R12 R11
Res-¼w..1k.......RR-0572...7..R4 R3 R22 R23 R26 R27 R28
Res-¼w..1k2......RR-0574...4..R13 R16 R20 R21
Res-¼w..2K2......RR-0580...2..R17 R18
Res-¼w..4K7......RR-0588...2..R14 R15
Res-¼w..10k......RR-0596...5..R1 R2 R19 R24 R25
Res-¼w..18k......RR-0602...1..R8
Res-¼w..22k......RR-0604...1..R7
Res-¼w..100k.....RR-0620...3..R9 R5 R6
Res-¼w..1M.......RR-0644...1..R10
Trip Pot…1k......RT-4354...1..VR3
Trip Pot…10k.....RT-4360...1..VR2
Trip Pot…20k.....RT-4362...1..VR1
STP16NE06.P FET..ZT-2277...2..IC5 IC4
IRF9540.N Ch FET.ZT-2467...2..IC2 IC3
or TIP32 & TIP33 for 3A
 switching.. bit cheaper
TO220 insulators HP-1155...1..
M3x12mm Bolts....HP-0140...1..
M3 Nuts .........HP-0146...1..
M3 Washers.......HP-0148...1..
SPDT CO .........ST-0554...1..
DPDT CO .........ST-0555...1..
IP65 Alum Box....HB-5042...1..
Cable Glands.....HP-0732...1..