Emulator for 27C256 EPROM
COMPONENTS LIST
Resistors:
R1,R2 = 1.5 k-ohm
R3,R7 = 12 k-ohm
R4 = 10 k-ohm
R5,R6 = 4.7 k-ohm
R8 = 10 k-ohm 8-way SIL array
Capacitors:
C1,C2,C16,C17 = 10µ F 35V
C3 =47µ F 35V
C4-C9,C13-C15 =100nF
C10 =1µ F 16V
C11,C12 =33pF
Semiconductors:
D1 = 1N4001
D2,D3 = high efficiency LED
T1,T2 = BS170
IC1 = MAX232 (Maxim)
IC2 = AT89C2051 (Atmel), programmed, order code 000153-41
IC3,IC4 = 74HCT573
IC5 = 62256 (RAM)
IC6,IC7,IC8 = 74HCT541
IC9 = EPROM being emulated
IC10 = 7805
Miscellaneous:
K1=9-way sub-D socket (female), PCB mount
PC1-PC4= solder pin
JP1= 3-way SIL pinheader with jumper
S1= pushbutton, 1 make contact
X1=12MHz quartz crystal
PCB, order code 000153-1
Disk, project software, order code 000153-11

Radio-Linked Caller ID System
COMPONENTS LIST
Caller Unit (TX)
Resistors:
R1,R2 = 1 M-ohm 1%
R3 = 4.7 k-ohm
R4 = SIL array, 8-way, 10k-ohm
R5 = SIL array, 4-way, 10k-ohm
Capacitors:
C1,C2 = 22µ F 16V radial
C3,C4 = 100nF, 5mm lead pitch
C5 = 100pF
Semiconductors:
D1 = LED, high efficiency
IC1 = HT-12E (Holtek), RS Components # 854-100, Maplin # AE17T, Conrad # 175420
IC2 = TC55RP5002EZB, RS Components # 207-0045
Miscellaneous:
K1 = Transmitter module, RadioMetrix type TX2, Farnell # 722-4930 (418 MHz) or 722-4953 (433 MHz)*
S1 = 8-way DIP switch
S2 = 4-way DIP switch
S3 = pushbutton, 1 make contact
Antenna, see text
BT1 = 12V N-size battery (L1028)
PCB, order code 000108-1
ABS case, size 124 x 33 x 30 mm, Maplin # FT31J
COMPONENTS LIST
Receiver Unit (RX)
Resistors:
R1 = 4.7 k-ohm
R2 = 56k-ohm 1%
R3 = 5.6 k-ohm 1%
R4 = 8-way SIL array, 4.7 k-ohm
Capacitors:
C1,C2 = 22µ F 16V radial
C3 = 100nF
Semiconductors:
D1 = LED, high efficiency
IC1 = HT-12D (Holtek), RS Components # 854-116, Maplin # AE18U, Conrad # 174351
IC2 = TC55RP5002EZB, RS Components # 207-0045
Miscellaneous:
K1 = Receiver module, RadioMetrix type RX2, Farnell # 722-4941 (418 MHz) or 722-4965 (433 MHz)*
K2 = 8-way SIL pinheader
S1 = 8-way DIP switch
S2 = on/off switch
Antenna, see text
ABS case, size 125 x 62 x 38 mm, Maplin # BZ73Q
PCB, order code 000108-2
Disk, project software, order code 00108-11
* Radiometrix distributor for the UK: Low Power Radio Solutions (LPRS), http://www.lprs.co.uk/

Learning RC5 Control Decoder
COMPONENTS LIST
Resistors:
R1,R2,R3 = 1 k-ohm
R4,R6,R8-R11 = 100 k-ohm
R5 = 10 ohm
R7 = 100 ohm
Capacitors:
C1,C4,C6,C7 = 100nF
C2,C3,C5 = 22µ F 16V radial
Semiconductors:
D1,D2,D3 = low current LED
IC1 = AT90S2343-10PC, Publishers order code: 000081-41
IC2 = L272M
Miscellaneous:
JP1 = 2-pin pinheader with jumper.
K1 = 10-way SIL pin header for board edge mounting.
IC3 (not on board) 36 kHz centre frequency IR receiver/demodulator, e.g., IS1U60 (Sharp) SFH506-36, SFH5110-36, SFH5110 (Siemens).
PCB, Publishers order code 000081-1.
Disk, project source code and Hex file, order code 000081-11

Microprocessor Controlled Light Dimmer
COMPONENTS LIST
Resistors:
R1,R2,R12 = 33 k-ohm
R3 = 120 ohm
R4 = 2.7 k-ohm
R5,R13 = 470 k-ohm
R6 = 47 ohm
R7 = 330 ohm
R8 = 470 ohm
R9 = 39 ohm
R10 = 100 k-ohm 1 W
R11 = 10 k-ohm
Capacitors:
C1,C2 = 27 pF
C3 = 0.47µ F 400 V (Class X2)
C4 = 47 nF 400 V (Class X2)
C5 =10 nF 400 V (Class X2)
C6,C7= 100 nF
C8 = 22µ F 16 V radial
Semiconductors:
D1 = zener diode 9.1V 500mW
D2-D9 = 1N4007
T1,T2 = BC337
Tri1 = TIC226D
IC1 = PIC16F84-04, programmed, order code 000117-41
IC2 = MOC3021
IC3 = 7805
IC4 = 74HCT14
IC5 = 4N25
Miscellaneous:
S1,S2,S3 = pushbutton with make contact, safety Class 2
X1 =4 MHz quartz crystal
K1,K2 = 2-way PCB terminal block, lead pitch 7.5 mm
Case: e.g. Bopla (Conrad-Electronics order code 52 22 52-11)
PCB, order code 000117-1
Project disk (PIC source code files), order code 000117-11

High Voltage Supply
COMPONENTS LIST
12.6 V Supply
Resistors:
R1 = 1.2 k-ohm
R2 = 6.8 k-ohm
Capacitors:
C1 = 10µ F 63V radial
C2,C3 = 100nF
C4,C5,C6 = 2200µ F 25V radial
C7-C10 = 47n F ceramic
Semiconductors:
D1 = 1N4148
D2 = red high-efficiency LED
D3-D6 = FR606 (or similar 6A diode)
IC1 = KA78T12 (3A)
Miscellaneous:
K1,K2,K3 = 2-way PCB terminal block, lead pitch 5mm
For IC1: heatsink type SK129 63,5 STS, 3.5 K/W (Fischer) (Dau Components)
Isolation material for IC1
PCB, order code 000186-2
COMPONENTS LIST
330-V converter
Resistors:
R1,R2 = 120 k-ohm
R3 = 4.7 k-ohm
R4 = 470 k-ohm
R5 = 1 k-ohm
R6 = 15 k-ohm
R7 = 6.8 k-ohm
R8,R9 = 680 k-ohm
R10 = 330 k-ohm
R11,R12,R13 = 2.2 ohm
R14 = 100 ohm
R15,R16 = 82 k-ohm
P1 = 100 k-ohm preset H
P2 = 10 k-ohm preset H
Capacitors:
C1 = 1nF ceramic, lead pitch 5mm
C2,C9 = 10nF ceramic, lead pitch 5mm
C3,C7,C10 = 100nF ceramic, lead pitch 5mm
C4 = 1nF MKT, lead pitch 5mm
C5,C6 = 100µF 16V radial
C8 = 100µF 25 V radial
C11 = 220µF 25V radial
C12 = 4nF7
C13,C14,C15 = 2µF2 450V radial, lead pitch 5mm, diameter 10mm
C16,C17,C18 = 1000µF 25V radial
Inductors:
L1 = suppressor coil 40µH 3A, type SFT10-30 (TDK)
L2,L3 = 47mH, e.g., 2200R series type 22R476 (Newport Components)
Semiconductors:
D1-D4 = BY329-1000 (Philips)
D5 = BAT85
T1 = BC550C
T2,T3 = BUZ11
IC1 = SG3525A(N) (ST Microelectronics)
Miscellaneous:
K1 = 2-way PCB terminal block, lead pitch 5mm
K2,K3 = 2-way PCB terminal block, lead pitch 7.5mm
F1 = fuse 2AT (time lag) with PCB mount holder
TR1 = ETD29 (Block)
primary: 2 windings 11 x (3 x 0.5 mm parallel) ecw
secondary: 1 winding 300 x 0.3 mm ecw
PCB, order code 000186-1

MIDI to Voltage Converter
COMPONENTS LIST
Resistors:
R1,R3 = SIL array 4 x 10 k-ohm
R2 = 33 k-ohm
R4 = 470 ohm
R5 = 220 ohm
R6,R7 = 10 k-ohm
Capacitors:
C1 = 4µ F7 16V radial
C2,C3 = 27pF
C4,C7-C10 = 100nF
C5 = 470µ F 25V radial
C6 = 10µ F 16V radial
Semiconductors:
D1 = 1N4148
D2 = 1N4001
IC1 = programmed PIC16F84-10/p, order code 000158-41
IC2 = 6N138
IC3 = 7805
IC4 = TL061
IC5-IC20 = LTC1452CN8
Miscellaneous:
K1 = 5-way DIN socket, PCB mount, receptacles at 180°
K2 = 20-way boxheader, angled pins
K3 = mains adapter socket, PCB mount
S1,S2 = 4-way DIP switch
X1 = 10MHz quartz crystal
Disk, contains source code and hex code files, order code 000158-11

GBPB – GameBoy Prototyping Board
COMPONENTS LIST
Capacitors:
C1,C2 = 100nF
Semiconductors:
IC1 = socket for 27C256
IC2 = 74HC138
Miscellaneous:
(K1 = card edge connector on board)
K2 = 34-way boxheader
K3 = 16-way SIL-header
K4 = 8-way SIL-header
PCB, order code 000151-1