Knock indicator parts list -------------------------- 17 June 1996 The following parts are used in the construction of the knock indicator. Prices are current as of June 1996. Radio Shack parts are listed, since those are most universally available. Many parts are also available from local and mail-order electronics stores at lower prices, especially in quantities of 10 or 100. The author often uses Jameco, a mail-order company having good service and much better prices than Radio Shack. The author has parts listed below available as a kit for reasonable cost. Larry Fisher GNOne@tiac.net ----------------------------------------------------------------------- Parts list: vendor, part number, description, quantity per package (if > 1), price (US$). PCB parts list -------------- 1 RS 271-018 390 ohm resistor, 1/2W (2) 0.19 2 RS 273-065 piezo buzzer 2.49 3 RS 276-087 Super Bright LED, T1 3/4 red, 2000 mcd, clear lens 1.69 4 RS 276-159 Integrated Circuit PC board, 1.5"x1.5" (2) 1.49 5 RS 276-1620 1N914 or 1N9148 diode (50) 1.98 6 RS 278-772 Ribbon cable, non-shielded (5') 3.99 7 RS 278-1627 Heat shrink tubing (7) 1.99 8 RS 278-1215 22 guage solid hook-up wire (100') 3.99 9 RS 271-1114 390 Ohm resistor, 1/2 Watt, ±5% (5) 0.49 10 RS 271-1337 15K Ohm resistor, 1/4 Watt, ±5% (5) 0.49 11 RS 271-1347 100K Ohm resistor, 1/4 Watt, ±5% (5) 0.49 12 RS 272-1434 1µF tantalum capacitor, ±10% (2) 0.59 13 RS 272-131 Disk capacitor, .01µF (2) 0.06 14 RS 272-135 Disk capacitor, .1µF (2) 0.11 15 RS 276-079 LED snap-in holder (5) 0.59 (Preferred: JE 23077 LMH200 LED mounting hardware 0.13) 16 RS 276-1723 555 timer IC 1.19 17 RS 276-2009 PN2222 NPN transistor 0.59 18 RS 276-1995 8-pin DIP IC socket (2) 0.59 (Preferred: JE 112205 8LPD 0.13) 19 RS 275-1547 Mini SPST momentary switch (4) 2.99 20 RS 275-612 Submini toggle switch 2.89 21 RS 278-1632 4" wire ties (30) 1.59 22 RS 64-2343 double-sided sticky fastener 1.69 Box and external wiring parts list ---------------------------------- 30 RS 270-230 Molded enclosure, 3.25"x2.125"x1.125" 1.99 (not recommended for use on dashboards; Preferred: JE 18921 ABS Speedy H2855, 3.125"x2.0"x.875" 1.95) 31 RS 274-274 Miniature (1/8") stereo inline jack (2) 1.79 32 RS 274-284 Miniature (1/8") stereo plug (2) 2.19 33 RS 64-2345 hook and loop fasteners (4) 2.19 34 RS 278-366 Modular cord, 4 cond, 100 ft 10.98 35 RS 278-777 4-conductor cable (30') 8.99 36 OT 3M 558 22-26 guage wire taps (25) 5.00 37 RS 64-3025 Grommets (31) 1.49 38 RS 278-1652 8" wire ties (30) 2.99 Additional parts for optional external alarm -------------------------------------------- 41 RS 273-070 piezo buzzer, 105dB 9.95 42 RS 274-292 subminiature jack (2) 1.79 43 RS 274-289 subminiature plug (2) 1.49 44 RS 278-366 Modular cord, 4 cond (100') 10.98 45 RS 64-2345 hook and loop fasteners, (4) 2.19 46 RS 271-1301 100 Ohm resistor, 1/4 Watt, ±5% (5) 0.49 47 RS 278-1627 Heat shrink tubing (7) 1.99 RS - Radio Shack JE - Jameco Electronics 1355 Shoreway Road Belmont, CA 94002-4100 Tel 415-592-8097 FAX 415-592-2503 Orders 800-831-4242 OT - Other; Adequate replacements not available at Radio Shack or JameCo.