Справочник Пользователя для Ramsey Electronics Weather Radio rrw1b

RRW1B

• 9

PARTS SUPPLIED WITH YOUR RRW1B (RECEIVER)

Capacitors

2 10 pF ceramic capacitor (marked 10 or 10K) [C27,28]

1 0.001 uF ceramic capacitor (marked .001, 102 or 1 nF) [C29]

1 0.01 uF ceramic capacitor (marked .01, 103 or 10 nF) [C20]

4 0.1 uF ceramic capacitor (marked .1, 104 or 100 nF) [C21,24,26,30]

1 1 uF electrolytic capacitor [C25]

3 10 uF electrolytic capacitor [C22,23,31]

1 1000 uF electrolytic capacitor [C32]

Resistors and Potentiometers

1 100 ohm resistor (brown-black-brown) [R23]

1 220 ohm resistor (red-red-brown) [R27]

1 470 ohm resistor (yellow-violet-brown) [R22]

1 1K ohm resistor (brown-black-red) [R25]

1 100K ohm resistor (brown-black-yellow) [R24]

1 1Meg ohm resistor (brown-black-green) [R21]

1 22Meg ohm resistor (red-red-blue) [R26]

1 100K ohm trimmer potentiometer (yellow top marked 104) [R20]

Semiconductors and Integrated Circuits

1 1N4000 series rectifier diode (black with white band) [D21]

-Note that 1N4000-1N4007 diodes may used.

1 2N3904 NPN transistor (marked 2N3904) [Q21]

1 2SC2498 or 2SC2570 NPN transistor (marked C2498 or C2570) [Q20]

1 78L05 5V voltage regulator (three leads, marked LM78L05ACZ) [VR1]

1 Large Green LED [D20]

1 IR LED (Clear body) [D22]

1 MICRF001 data receiver IC (14 pin DIP marked MICRF001BN) [U20]

1 PIC12C509A pre-programmed micro-controller (8 pin DIP marked with
a sticker labeled RR) [U21]

Miscellaneous Components

1 DPDT PC mount pushbutton switch [S20]

1 2.1 mm DC power jack [J22]

1 2-pin jumper header [J21]

1 2-hole screw terminal, .157 green jack [J20]

1 8 pin DIP socket used with U21

1 6” piece of #20 buss wire [ANT1]

2 33 nH 4-turn coils [L20,21]

1 3.3149 MHz crystal [X20]

2 feet of #24 two conductor hook-up wire for IR LED extension cable

1 1/8” diameter x 1” long heat shrink tubing for IR LED assembly

1 1/4” diameter x 1” heat shrink tubing for IR LED assembly