| DC VOLTAGE MONITOR
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If battery status is important, you need this kit. This kit uses 7 LEDs to monitor 12v DC in 1v, 1/2v, or 1/4v steps. Monitor 8v or 5v in 1/4v steps. Great for boats, motor homes, model planes or race car ni-cads. All parts and instructions are included. SIZE: 1.3" x 2.7".
$9.00 each
Order # VM-1
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BIG EAR AMPLIFIER
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Listen through walls, hear conversations across the room. Add a parabolic reflector and hear blocks away. The BIG EAR Amp. can be hidden about anywhere. Makes an ultra sensitive intercom. Can be used as a 1.5W amp. We supply a mini-electret mike in the kit. You supply the speaker or headset for output. Power requirement 6 to 12v DC. SIZE: 1" x .75"
$11.00
Order # AA-1
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AUDIO PREAMP
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Boost your microphone's output up to line level!
Plug your mic into our AP-1 and drive your amp to full capacity. Connect an AP-1 to a pair of amplified speakers, plug your mic in and you have an instant PA system. Requires 6 to 12v DC. Size: 1/75" x 1"
$10.00 each
Order # AP-1
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CAPACITANCE METER
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This kit will turn your digital volt meter into a capacitance meter. Turn that junk box of unmarked capacitors into a fortune of usable parts. Measure capacitors from 2.2pF to 2.2uF. Power requirement 9v DC. SIZE: 1.8" x 2"
$15.00
Order # CA-1
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INDUCTANCE METER ADAPTOR
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One of the most difficult components to identify in electronics is the inductor. If you have that box of unidentified parts, you can pay for this kit in just one project. Connect to your digital multimeter, set the range to 2 Volt, DC scale and you're in business. Even works on auto-ranging meters. This unit will read inductors from 3uH to 7MH. Operating voltage 9vDC. SIZE: 1.75" x 2.5"
$15.00
Order # IA-1
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CODE OSCILLATOR
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This easy to build kit will give you the dots and dashes for practicing the Morse Code. Comes with all parts & and schematic. Power requirement 6 to 15 volts DC.
SIZE: .75" x 1"(Case or key not included)
$5.00
Order # OSC-1
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BLINKEY LIGHT
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This kit is perfect for kid toys, and model trains. Add a box, set it on the dash of your car, use it as an auto burglar alarm. Comes with 2, 5mm LEDs that alternately flash. It just keeps on go'n and go'n and go'n... Power requirement 6 to 15v DC. SIZE: .75" x 1"
$5.00
Order # RB-2
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DIGITAL THERMOMETER
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The DT-3 kit will turn your digital volt ohm meter into an accurate digital thermometer with .1 degree resolution. Measure temperatures from -40F to 250F. The remote sensor is .25" sq. and can be mounted many feet from the meter. Power requirement 9V DC.
Size: 2" x 1.35"
$10.00
Order # DT-3
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ELECTRONIC TIMER
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Use this kit in A-STABLE (continuous train of pulses) or in the MONO - STABLE mode (triggered time delay). This kit will time circuits from nano-seconds to 30 minutes. Comes with a variety of resistors and capacitors suitable for most applications. Included in the ET-1 kit is a mathematical formula to determining the time segments. This kit delivers 100mA of output. If you need more power you must use a relay large enough to handle your needs.
Operating voltage 4.5 to 12V DC. SIZE: .9" x 1"
$8.00
Order # ET-1
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FM ''STEREO'' TRANSMITTER
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Have your own FM Radio Station.
Any stereo signal you plug into the FMST-100 transmitter kit will be transmitted to any FM radio tuneable from 76 to 108MHz FM. This is NOT a toy! Plug in your CD player, tape deck and have a wireless link to any FM radio, within 200 ft. Listen to your CD while mowing the lawn. Transmit from your car to your camper, or through an auditorium. Transmit music on one channel, sing on the other. Compatible with any of your audio system components. Clarity is excellent, aprox. 40dB stereo separation. Length of antenna determines distance of transmission. Comes complete with left & right input level control as well as a crystal for left & right stereo separation. 9v battery operation. SIZE: 1.5" x 1.6" Cabinet size: 1.5" x 2.5" x 3"
(Antenna not included)
$30.00
Order # FMST-100
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INFRARED
TRANSMITTER and RECEIVER
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This kit transmits a 40KHz modulated I-R signal to a distance of 6 to 8 feet. Place the transmitter on one side of a doorway and the receiver on the other side to see if on object passes through. Can be used as a remote switch to turn objects OFF and ON by infrared. The IR receiver will only receive 40KHz modulated infrared light. You can configure the output for normally ON or normally OFF operation. This allows you to use it as a security sensor or as a remote control switch. You can use the receiver to test TV or VCR remote controls.
Transmitter SIZE: 1" x .75"
Receiver SIZE: 1.4" x 1.2"
$24.00
Order # IR-2
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LIE DETECTOR
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This kit can be great fun at parties. Lie and an audible tone will change, the more you lie the louder the tone. When you lie your hands sweat, this kit allows you to measure these changes. Only a very slight amount of change will cause the tone to increase in frequency. Power requirement 6 to 12v DC. PCB size: .8" x 1.2"
$12.00
Order # LD-1
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STROBE LIGHT
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Do you need an attention getter, warning light, or flashing light for model airplanes? Then this kit is for you. Use it as an emergency light for your auto, radio tower, even use it on your bicycle. Has a variable flash rate (up to 1 per second). Power requirement 6 to 12v DC. SIZE: 3.5" x 1.9"
$14.00
Order # ST-1
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VOICE ACTIVATED SWITCH
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This VOX circuit can be used to operate a tape recorder, ham radio, CB radio, or turn on an alarm. The VOX-1 kit has 100MA of output that operates a relay, light, motor. What could you do with a sound activated switch? Power requirement 7.5 to 18v DC. SIZE: 1.5" x 1.3"
$8.00
Order # VOX-1
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WIDE BAND
PRE-AMP
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The WBA series has been designed using teflon printed circuit board and surface mount technology for better performance. The RF preamp was designed to be used with wide band communication receivers, scanners, HT's, frequency counters, distribution amplifiers for satellite signals, VHF/UHF TV, local area network, or laboratory instruments.
Use the WBA-6 amplifier for scanners, HT's, Frequency counters, Satellite Receivers. It amplifies low-level (weak) signals. If the signal is extremely low, two amplifiers can be used in a series.
- 1MHz to 1.5GHz 7dB NF
- 1dB compression =+11dBm
- Gain: 1MHz-8dB to 1.5GHz-5dB
- Power requirement: 12v @ 50Ma
$20.00
Order # WBA-6
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