Main Board Ref Part Qty Number Supplier Cat. No Price Ext. Comment BAT1 8 cell AA nicad pack 1 Digikey P097-L024-ND 25.03 25.03 C3 mini axial 'lytic 1 470 uF Digikey P6305-ND 0.72 0.72 C4 C8 tantalum 2 4.7 uF Digikey P2024-ND 0.35 0.70 D3 power diode 1 1N4001 Digikey 1N4001GICT-ND 0.06 0.60 9 extra F1 PolySwitch® fuse 1 Digikey RUE250-ND 1.02 1.02 J12 Coax Power Jack 1 2.1mm ID Digikey CP-002A-ND 0.38 0.38 J5 RJ12 top entry 1 Digikey A9073-ND 0.84 0.84 L1 iron core inductor 1 1 uH Digikey M7010-ND 1.03 1.03 LED1 LED2 LED3 LED4 LED11 high-eff red LED 5 HLMP1700 Digikey HLMP-1700QT-ND 0.30 1.50 LED15 hi-eff yellow LED 1 HLMP1719 Digikey HLMP-1719QT-ND 0.30 0.30 LED5 LED6 LED7 LED8 LED10 hi-eff green LED 5 HLMP1790 Digikey HLMP-1790QT-ND 0.30 1.50 PLCC 52-pin PLCC socket 1 Digikey A2123-ND 2.03 2.03 R14 Resistor 1 47‡, 1/2W Digikey 47H-ND 0.05 0.27 4 extra RP1 RP3 RPACK9 2 47Kx9 Digikey 770-101-R47K-ND 0.30 0.60 RP2 RPACK6 1 1Kx5 Digikey 770-61-R1K-ND 0.21 0.21 RP4 RPACK 1 1Kx4 Digikey 770-83-R1K-ND 0.29 0.29 SPKR1 piezo beeper 1 Digikey P9957-ND 2.10 2.10 SW1 SPDT slide switch 1 Digikey CKN5006-ND 4.47 4.47 SW2 SW3 pushbutton switch 2 Digikey P8006S-ND 0.21 0.42 U14 voltage regulator 1 LM2931Z-5.0 Digikey LM2931Z-5.0-ND 0.74 0.74 U3 transparent octal latch 1 74HC373 Digikey MM74HC373N-ND 0.87 0.87 U4 16x2 LCD 1 LM-052L Digikey 73-1044-ND 16.97 16.97 U5 tristate bus driver 1 74HC244 Digikey MM74HC244N-ND 0.87 0.87 U6 3-to-8 decoder 1 74HC138 Digikey MM74HC138N-ND 0.74 0.74 U7 quad Schmitt NANDs 1 74HC132 Digikey MM74HC132N-ND 0.82 0.82 U9 hex inverters 1 74HC04 Digikey MM74HC04N-ND 0.57 0.57 unnamed male strip header 1 Digikey 929834-02-36-ND 1.02 1.02 unnamed female strip header 3 Digikey 929974-01-36-ND 1.25 3.75 VR1 trimpot 1 20K Digikey 3352T-203-ND 0.88 0.88 X1 microproc crystal 1 8 MHz Digikey CTX056-ND 1.27 1.27 PCB PC Board 1 Douglas n/a 12.00 12.00 U10 U11 motor driver 2 L293D Newark 15T L293DNE 2.92 5.84 U12 voltage monitor 1 DS1233-10 Newark 01T DS1233-10 1.42 1.42 C6 2% polyprop cap 1 0.0068 uF not used n/a 0.00 0.00 ir J7 3-pin female header 1 not used n/a 0.00 0.00 ir LED9 high-eff red LED 1 HLMP1700 not used n/a 0.00 0.00 ir Q1 NPN darlington 1 ZTX614 not used n/a 0.00 0.00 ir R3 R7 Resistor 2 10K not used n/a 0.00 0.00 ir R4 1% precision res 1 3.83K not used n/a 0.00 0.00 ir R5 Resistor 1 1K not used n/a 0.00 0.00 ir R6 Resistor 1 47K not used n/a 0.00 0.00 ir U15 infrared demodulator 1 IS1U60 not used n/a 0.00 0.00 ir C1 C2 monolithic cer cap 2 22 pF on hand n/a 0.00 0.00 C5 C7 C9 C14 monolithic cer cap 4 0.1 uF on hand n/a 0.00 0.00 CAB1 telephone cable 1 4-wire on hand n/a 0.00 0.00 D1 signal diode 1 1N914 on hand n/a 0.00 0.00 DC1 AC or DC adapter 1 12v, 500mA on hand n/a 0.00 0.00 DIP1 DIP2 20-pin DIP socket 2 on hand n/a 0.00 0.00 DIP3 28-pin DIP socket 1 on hand n/a 0.00 0.00 DIP4 DIP5 14-pin DIP socket 2 on hand n/a 0.00 0.00 DIP6 DIP7 DIP8 DIP9 16-pin DIP socket 4 on hand n/a 0.00 0.00 ENCL1 CPU board enclosure 1 on hand n/a 0.00 0.00 ENCL2 interface enclosure 1 on hand n/a 0.00 0.00 R1 Resistor 1 2.2M on hand n/a 0.00 0.00 R12 Resistor 1 47‡ on hand n/a 0.00 0.00 R2 Resistor 2 1K on hand n/a 0.00 0.00 R8 R15 Resistor 2 47K on hand n/a 0.00 0.00 U1 6811 microprocessor 1 MC68HC11A1FN on hand n/a 0.00 0.00 U13 voltage regulator 1 LM7805CTB on hand n/a 0.00 0.00 U2 32K static CMOS RAM 1 62256-100LP on hand n/a 0.00 0.00 U8 octal latch 1 74HC374 on hand n/a 0.00 0.00 J1 3 pcs. 7-pin female hdr 1 Sub-part n/a 0.00 0.00 J14 14-pin female header 1 Sub-part n/a 0.00 0.00 J15 14-pin male header 1 Sub-part n/a 0.00 0.00 J2 3 pcs 9-pin female hdr 1 Sub-part n/a 0.00 0.00 J3 10-pin female header 1 Sub-part n/a 0.00 0.00 J4 12-pin female header 1 Sub-part n/a 0.00 0.00 J6 4x2 header, female 1 Sub-part n/a 0.00 0.00 J8 J13 4-pin header 2 Sub-part n/a 0.00 0.00 Total 91.77 Interface Board Ref Part Qty Number Supplier Cat. No Price Ext. Comment C15 C16 mini axial 'lytic 2 47 uF Digikey P6619-ND 0.30 0.60 non-axial part D2 bridge rectifier 1 DB101 Digikey DB101DI-ND 0.62 0.62 J10 RJ12 top entry 1 Digikey A9073-ND 0.84 0.84 main part J11 Coax Power Jack 1 2.1mm ID Digikey CP-002A-ND 0.38 0.38 main part LED12 hi-eff green LED 1 HLMP1790 Digikey HLMP-1790QT-ND 0.30 0.30 main part LED13 high-eff red LED 1 HLMP1700 Digikey HLMP-1700QT-ND 0.30 0.30 main part LED14 hi-eff yellow LED 1 HLMP1719 Digikey HLMP-1719QT-ND 0.30 0.30 main part R11 Resistor 1 47‡, 1/2W Digikey 47H-ND 0.00 0.00 purchased as part of main U17 voltage regulator 1 LM2931Z-5.0 Digikey LM2931Z-5.0-ND 0.74 0.74 main part PCB PC Board 1 Douglas n/a 6.00 6.00 C10 C11 C12 C13 mini radial 'lytic 4 10uF not used n/a 0.00 0.00 J9 DB-25 female connector 1 not used n/a 0.00 0.00 SW4 SPDT switch 1 not used n/a 0.00 0.00 U16 RS232 converter 1 MAX232CPE not used n/a 0.00 0.00 R10 Resistor 1 1K on hand n/a 0.00 0.00 main part R12 Resistor 1 47‡ on hand n/a 0.00 0.00 main part R9 Resistor 1 2.2K on hand n/a 0.00 0.00 Total 10.08