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Home > Electronic Kits > Rainbow Electronic Kits
Rainbow Electronic Kits
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Product:
LCD-T1 DUAL TEMP. PROBE KIT
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Kit uses a 3-1/2 digit LCD Digital Panel Meter & a pair of National LM34 temperature sensors to construct an accurate thermometer with .1o resolution & +-1-1/2o accuracy from -20o to +199.9o "F". The TO-92 size sensors can be remotely located. Uses flat 4 conductor "phone" type cable to connect sensors so there'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
Mtr: L: 1-1/2" W: 1-1/8" H: 1/2" WT: .17
8836 RB Pre drilled box with cutout available separately.
Box: L: 3" W: 2-1/2" H: 1-5/8" WT: .13
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Product:
PHONE SERVICE MONITOR KIT
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Do you know who your employees are calling? Are your children Dialing up "on line" perverts? This kit monitors all activity of your phone.
Out going Calls: Records Date, Time of each call;
Length of each call
The number called
Credit card number (if used)
In coming Calls: Records Date & Time of call
Number of rings
Length of call
Records any DTMF tone on line regardless of source. Only 3 connections: Parallel Port of your P.C; Phone line in; and your Phone. Menu driven DOS software included. Writes to screen or Disk. TM-1
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Product:
DTMF DISPLAY KIT
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This kit decodes all DTMF tones including 0-9,#,* , A-C. Displays on a 2 X 16 LCD display. You can connect to any DTMF tone source. Records and decodes from such sources as: Phone Line, Scanner, Tape recorder, Receiver etc. Stores the last 490 digits it receives. Exceed 490 and unit pushes out the first digit received. Stored data is easily displayed using the scroll switch. Decoder is used to test phone equipment, modems, remote varification of control codes, alarm system dailer test, even monitoring phone usage. Maintains data even with battery removed. Black anodized aluminum case. RCA jack input. Requires 9VDC battery. DTMF-DIS
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Product:
PHONE LINE BUSY KIT
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Add one to all your phones. When one phone is in use, a red LED is lighted on all the other phones. Shows that the line is in use so they don't pick-up and disturb your modem, FAX or those private conversations. Requires 9VDC battery .TEL-LITE
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Product:
DTMF REMOTE CONTROLLER KIT
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This kit decodes all DTMF tones including 0-9,#,* , A-D. Can use any source for the DTMF tone, such as Phone line, Scanner, etc. When you press the "Learn" button the internal uController stores the DTMF code sequence (up to 16 Digits) in non-volatile memory. When this code sequence is detected the unit activates the internal relay. To deactivate you simply enter # and your code or press the Reset button on the unit. Ideal for controlling a light, air conditioner, etc. from a remote location. Can be used to disconnect the Phone line if a certain number is Dialed. RJ-11 Mod jack for phone line connection, DIN connector for relay output. AC adaptor supplied. DTMF-1
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Product:
DTMF DECODER KIT TT-16
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This kit decodes all DTMF tones including 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
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Product:
PHONE GENIE KIT PTG-1
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The Phone Genie kit may be connected to a phone line, radio receiver, or scanner (or any source of DTMF tones). Controls 4 separate relays that you can use to control appliances, security equipment, etc from most anywhere in the world that you can access a phone. Genie stays connected to your line, and when your answer machine picks up you transmit your security code (up to 15 digits), and the relay # to access a relay (repeat to access another relay). You can energize each relay individually or all together (You turn them off the same way). On board EEPROM is used to store your code even when power is removed. Includes power pack.
Predrilled cabinet available separately
L: 5-4/4" W: 3-7/8" H: 3/4" WT: .8
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Product:
LIGHT GENIE KIT LG-2
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Circuit output is open collector transistor that sinks up to 100mA to operate a external relay (NOT SUPPLIED). Holds relay closed until light level rises to adjustable set point. 6-15V DC Operation. LG2
L: 1-1/2" W: 1-1/4" H: 1/2" WT: .2
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Product:
WATER DETECTOR KIT WD-2
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555 Osc. circuit drives speaker (INCLUDED) to sound alarm when water level rises on remote sensor board and changes the conductivity between the 2 contacts. 6-12V DC Operation.
Main Board .8" X .75" Sensor board 1.25" sq.
WT: .4
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Product:
VOICE ACTIVATED SW. KIT VOX-1
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Voice activated switch circuit. Will operate a 100mA load. Can be used to drive a light, a relay for higher loads, etc. Use for alarms, ham radios , etc. Operates from audio source or from crystal, ceramic or electret mike. Operates on 5-15V DC.
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Product:
BIG EAR AMP KIT AA-1D
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Super sensitive amplifier kit can hear through walls etc. Couple to a parabolic reflector & earphones to hear for blocks. Based on the LM386 chip. Can be used as a general purpose 1W amp. Supplied with a mini-microphone. Runs on 6-12V DC.
L: 1-3/4" W: 1" H: 3/8" WT: .2
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Product:
DIGITAL THERMOMETER KIT DT-3
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Kit designed to turn your digital multi-meter into an accurate thermometer with .1 degree resolution. 250 degree span covering from -40 to +300 deg "F". Sensor is only 1/4" Sq & can be remotely located. Requires 9V battery
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Product:
DIGITAL CAP. METER KIT CA-1
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Circuit designed to turn your digital multi-meter into an accurate capacitance meter. Will measure capacitors from less than 2pF to 2.2uF. Needs 9V battery.
L: 2" W: 1-3/4" H: 3/8" WT: .2
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Product:
TEMPERATURE ALARM KIT TC-2
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Circuit output is open collector transistor that sinks up to 80 mA 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.
L: 2" W: 1-5/16" H: 1/2" WT: .2
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Product:
WIDE BAND 20DB AMP WBA-6
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RF preamp kit for scanners, frequency counters, receivers, etc. Uses state-of-the-art Teflon Board, & strip line microwave IC. Amplifies low Level signals. 2.8dB noise @ 1MHz-2.5GHz, 1dB compression =0dBM, Gain=20dB @ 1MHz, 6dB @ 2.5GHz.. Two amps can be cascaded for more gain. 12V DC @ 16Ma WBA-6
L: 1-1/4" W: 3/4" H: 3/8" WT: .1
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Product:
WIDE BAND 5DB PREAMP WBA-4
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RF preamp kit for driving balanced mixers, convertors, etc. Uses state-of-the-art Teflon Board, & strip line microwave IC. Amplifies High Level signals to an output level of approxmately 1V, 7dB noise @ 1MHz-1.5GHz, 1dB compression= +11dBM, Gain=8dB @ 1MHz, 5dB @ 1.5GHz.. 12V DC @ 50Ma .
L: 1-1/4" W: 3/4" H: 3/8" WT: .1
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Product:
8 CH. A/D PARALLEL PORT KIT
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Easy to assemble kit uses a TIL549 A/D converter, and a CD4051 CMOS Mux/Switch to provide 8 channels of 8 bit analog to digital conversion. Operates off the parallel port of your P.C. Under software control you select: channel for conversion, start conversion, & clock out the serial data. Included DOS software provides you with simultaneous on-screen display of 8 inputs on 64 segment bar graph display, or the numeric value of each ch., or a single selectable channel of Oscilloscope like trace. Hardware selectable 0-2.5 VDC or 0-5VDC input range. Chart provided to calculate scaling resistors (RESISTORS NOT INCLUDED) Plug supply provides power. 3" X 2-1/2" X 1" case mates to parallel port on back of PC. DB-9 connector for 8 analog inputs.
L: 3" W: 2-1/2" H: 1" WT: 1.4
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Product:
DC VOLTAGE MONITOR KIT VM-2
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Voltage monitor kit monitors voltages using 7 LEDs (2 red, 2 yellow, 3green) as a bar graph type display. 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.
L: 2-3/4" W: 1-7/16" H: 3/8" WT: .2
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Product:
AC VOLTAGE MONITOR KIT
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Voltage monitor kit monitors voltages using 7 LEDs (2 red, 2 yellow, 3green). 100VAC to 132VAC in 6V steps. Change resistors to select voltage ranges and indicated steps. All parts included. VM-110
L: 2-3/4" W: 1-7/16" H: 1/2" WT: .15
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Product:
DIGITAL INDUCTANCE METER KIT IA-1
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Circuit designed to turn your digital multi-meter into an accurate inductance meter. Will measure inductors from 3uH to 7mH. Needs 9V battery
L: 2" W: `1-3/4" H: 3/8" WT: .2
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Product:
PIC RELAY BOARD KIT PRC-1
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Multi Mode relay board based on a pre programmed PIC 12C509 microcontroller IC.
Board features: DPDT Relay rated: 2A 30VDC /1A 120VAC resistive.
Selectable active High or active Low trigger input.
Delay 1: Immediate turn on with fixed .5sec delay on turn off OR variable 1.5sec-14sec delay on turn off.
Delay 2: Immeidate turn on with fixed 10sec delay on turn off OR variable 11sec-24sec delay on turn off.
On/Off Toggle: Relay remains "on" until another input is received.
Latch Mode: Relay remains on until a valid "reset" is received.
Relay is Ul/CSA listed. Terminal strip for trigger & reset in and relay contacts out. Includes plug supply.
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Product:
TIR-1 I/R ANALYZER KIT
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Kit based on Motorola's MC3373 Remote control amp/detector. This kit allows you to display & analyze code patterns from any infrared 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 computers parallel port and the software runs on any P.C. compatible 386 or later machine with VGA graphics & DOS 3.3 or higher
L: 2-7/8" W: 1-1/2" H: 3/4" WT: .3
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Product:
CALLER ID BLOCKER KIT
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Kit automatically inserts tone commands that blocks your identity to caller ID units. When you lift the handset, unit transmits either *67 (for standard phone system) or *97 for Centrex(r) (jumper selectable). Includes plug power supply.
WT: .6
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Product:
BOX FOR CALLER ID BLOCKER
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Plastic enclosure for holding 12356-RB (CID-1) Caller ID Blocker.
WT: .2
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Product:
CASE FOR PIC RELAY PRC-C
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Pre drilled plastic case for PIC Multi mode relay board
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Product:
R.F. ANALYZER KIT RFA-1
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kit allows you to display & analyze code patterns from any RF transmitter device that operates at 300MHz such as garage door opener,alarm "clicker" etc. 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 computers parallel port and the software runs on any P.C. compatible 386 or later machine with VGA graphics & DOS 3.3 or higher. AC power adapter included. RFA-1
For pre drilled plastic box for analyzer see #12408 RB
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Product:
PLASTIC CASE FOR RF ANALYZER
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Pre drilled case for RF Analyzer Kit #12404 RB
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Product:
2M/10M or 220MHzFM RECEIVER KIT
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Varactor tuned, narrow band FM receiver Kit. Uses dual conversion with 10.7MHz tuned IF. 2uV sensitivity & 5KHz bandwidth, 400mW audio output. Parts included to build either a 2M or 10M or 220MHz. receiver.
2Meter: 137-167MHZ
10Meter: 28.5-29.8 MHz
220MHz Band: 219.5-225.5 MHz
To calibrate the Local Osc.:, You will need either a frequency counter, Cable ready TV or converter, Or a Communications Receiver.
7.5-15VDC power (9V nominal)
L: 4-9/16" W: 4-1/8" HT: 3/4" WT: .5
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