Ramsey Electronics rrw1b Weather Radio User Manual


 
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