Specifications

555 Osc. circuit drives speaker (IN-
CLUDED) to sound alarm when water level
rises on remote sensor board and changes the conduc-
tivity between the 2 contacts. 6-12V DC Operation.
Main Board .8" X .75" Sensor board 1.25" sq. WD2
WT: .4
5292-RB Water Detector Kit
$9.95 $8.95
STOCK # DESC. 1EA 5+EA
WATER
DETECTOR
KIT
"Snapcircuits"For adults or children wanting to learn the
fundamentals of electronics while doing basic, working
projects. Parts simply "snap" together. Interlocking,
stacking parts such as resistors, diodes, switches, mo-
tors, capacitors, interconnects on plastic pieces. Plastic
base supports the parts. Build simple electronic "Door-
bell", Siren, logic circuits etc. No knowledge of electron-
ics is needed. Simple color drawings in workbook take
you through the setup. Ideal for children science classes
and demos. Additional/replacement parts available from
Mfg. Requires 4 "AA" batteries (not supplied.
NOT for children under 3, Recommended age 8+
SNAP TOGETHER ELECTRONIC
FUNDAMENTALS PROJECT KITS
KIT 14264-KT contains 30+ pieces and simple expriments
1-101
KIT 14263 contains 60+ pieces, Including parts not
available in 14264-KT, Experiments 1-101 & 102-305.
WT: 2
14264-KT Snapcircuits Jr. Project Kit
$29.95
STOCK # DESC. 1EA
WT: 3.3
14263-KT Snapcircuits Deluxe Project Kit
$49.95
STOCK # DESC. 1EA
FUN & EDUCATIONAL
DUAL PROBE
DIGITAL
THERMOMETER KIT
Kit uses a 3-1/2 digit LCD Digital Panel Meter & a pair of
National LM34 temperature sensors to construct an
accurate thermometer with .1
o
resolution & +-1-1/2
o
accuracy from -20
o
to +199.9
o
"F". The TO-92 size
sensors can be remotely located. Uses flat 4 conductor
"phone" type cable to connect sensors so their's no stiff
cable or wires. Switch controls power & which sensor is
read. Ideal for monitoring inside vs outside temperature,
Photograpiic chem baths, equipment temperatures in
cabinet. Requires 9V battery. LCD-T1
Pre drilled box with cutout available separately.
Mtr: L: 1-1/2" W: 1-1/8" H: 1/2" WT: .17
Bx: L: 3" W: 2-1/2" H: 1-5/8" WT: .13
8835-RB Digital Thermo. Kit
$34.95 $29.95
8836-RB Predrilled Plastic Box $9.95 $8.95
STOCK # DESC. 1EA 5+EA
Super sensitive amplifier kit can
hear through walls etc. Couple to a para-
bolic reflector & earphones to hear for blocks. Based on
the LM386 ChipCan be used as a general purpose 1.5W
amp. Supplied with a mini-microphone. Runs on 6-12V
DC. AA-1D
L: 1-3/4" W: 1" H: 3/8" WT: .2
3378-RB Big Ear Kit
$10.95 $9.95
STOCK # DESC. 1EA 5+EA
Kit uses Motorola's MC3373
Remote control amp/detec-
tor. This kit allows you to display
& analyze code patterns from any
infared device. Software allows you to save to disc,
compare current display with one stored on disc, & print
screen. 2 second sampling is displayed and you can
"zoom" in on any 8 millisecond portion. The on screen
trace can be saved in ASCII comma-delimited format for
import into spreadsheets. Kit connects to your comput-
ers parallel port and the software runs on any P.C.
compatable 386 or later machine with VGA graphics &
DOS 3.3 or higher. TIR-1
INFRARED ANALYZER KIT
L: 2-7/8" W: 1-1/2" H: 3/4" WT: .3
8837-RB I/R AnalyzerKit
$89.95 $79.95
STOCK # DESC. 1EA 5+EA
This kit decodes all DTMF tones in-
cluding 0-9,#,* , A-D. Can use any source
for the DTMF tone, such as phone line, scanner, etc. You
use a jumper to connect 1 of 16 outputs to drive the
internal relay. When selected digit is detected the relay
is energized. By adding additional external relays you
can control up to 16 different devices. Relay is energized
as long as tone is detected. By adding external flip-flops
or delay circuits you obtain "toggle" or time out actions.
Ideal building block for more complicated circuits. Turn
on your AC unit from your office. Use your cell phone to
activate an outside light. Internal relay is rated DPDT 1A
max @ 12VDC/115VAC resistive; so if a heavy or high
power load is expected you should use the internal relay
to control a heavier external relay. Operates on 7.5-
18VDC (9V battery) TT-16
L: 2-7/8" W: 2-1/8" H: 5/8" WT: .15
8838-RB DTMF Sweet-16 Kit
$34.95 $29.95
STOCK # DESC. 1EA 5+EA
"SWEET 16"
DTMF
DECODER
KIT
DC MOTOR SPEED
CONTROL KIT
L: 3" W: 2-3/8" H: 1-3/4" WT: .63
16925-KT DC Speed Control Kit
$15.95 $14.95
STOCK # DESC. 1EA 5+EA
12V DC motor or lamp control
kit. Will control any 12V DC
load up to 5A. uses pulse width
mod. to give 5% to 98% control range.
Kit contains all parts and a 12 V DC demo motor. Ideal
for DC tools, science fair projects.
Kit has all parts, (except hard-
ware) to build a repetitive flash.
Variable from 1 flash/second to per 4 sec-
onds. 4.5-6 or 12 VDC input. Ideal for special effects.
VARIABLE
STROBE KIT
L: 3-5/8" W: 2" H: 1-1/4" WT: 1
1142-KT Xenon Flash KIt
$9.00 $8.49
2941-LA Spare Flash Tube $1.50 $1.39
STOCK # DESC. 1EA 5+EA
Voltage monitor kit monitors voltages
using 7 LEDs (2 red, 2 yellow, 3green). Change
resistors to select voltage ranges and indicated steps:
5V or 8V in 1/4V steps or 12V in 1/4, 1/2 or 1V steps. All
parts included. VM-1
L: 2-3/4" W: 1-7/16" H: 3/8" WT: .2
4210-RB Battery Monitor Kit
$7.95 $6.95
STOCK # DESC. 1EA 5+EA
BATTERY
MONITOR KIT
SUPER
BIG-EAR
AMPLIFIER
KIT
Circuit output is open collector transis-
tor that sinks up to 80mA to operate
external relay (NOT SUPPLIED). Holds
relay closed until temperature rises to
adjustable set point. Range Approx. -20
to +300"F".7.5-15V DC Operation. TG-2D
L: 2" W: 1-5/16" H: 1/2" WT: .2
5289-RB Tem. Control Kit $7.75 $6.95
STOCK # DESC. 1EA 5+EA
TEMPERATURE
CONTROLLER KIT
Learn how to control loads using light by building light
dependant relay circuits. 3 different methods are detailed,
each with unique advantages & drawbacks.
Kit #1: Basic Light Controlled Relay
Based on a LDR (Light Dependant Resistor) & darlington
transistors to drive SPDT 10A relay. Adjustable sensitivity.
Kit #2: Light Controlled Relay
Uses a LDR & an Op-Amp. Drives SPDT 10A relay. Less
effected by supply & temp. Adj. sensitivity.
Kit #3: Advanced Light Controlled Relay
Uses a LDR & transistors to drive a SPDT 10A relay. Least
effected by supply & temp. Adj. sensitivity.
WT: .25
STOCK # DESC. 1EA
6179-KT Light Control Relays $18.95
LIGHT
CONTROLLED
RELAY KITS
Dual mode timer kit has many
uses. Dual LM 555 timing circuits
plus a relay driver (100mA Max. Cur-
rent Sink). In the astable mode the
circuit produces a continous train of pulses; in the mono
stable mode produces a triggered time delay useful for
debouncing switches. Can be cascaded for compound
applications. Operates from 4.5-12V DC. EBTD-9
L: 2-13/16"W: 2-1/4" H: 5/8" WT: .15
STOCK # DESC. 1EA 5+EA
ELECTRONIC
TIMER KIT
16916-RB 555 Timer Kit $12.95 $11.95
DO IT YOURSELF "Deli" Counter kit.
Kit contains a 0-99 Up counter
board/display assembly,
power supply and a
pushbutton Switch. Just
about any momentary type
contact will operate the
counter.
You supply a case, solder and labor to solder the power
supply & switch to the attached leads.
2-3/4" tall super brite Red LED make up the digits.
Each contact closer causes counter to increase 1 count.
There is no reset function, and unit will remember last
count for a couple days so to get to "00" you must
complete the count.
Display: W: 5" H: 4-3/16"
Driver: W: 4-5/16" H: 2" WT: .5
"DELI" COUNTER KIT
17511-KT "Deli" Counter Kit $10.95
STOCK # DESC. 1EA
TECH. & INFO: CALL 561-848-8236 FAX [phone] [e-mail]
59
KITS
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