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November 2012
8 Relay 8 Analog USB IO Controller 12 V
Click here for specs, downloads, and more pictures!
 (Out of Stock)Description: The KTA-225 is a USB or RS485 controlled IO module for interfacing PCs to real world applications, such as controlling lights and sprinkler systems, reading sensors and monitoring switches or analog signals. The Relays are capable of switching up to 5A at 250VAC, 10A at 120VAC and 10A at 24VDC but the PCB tracks will only handle up to about 5A. A simple ASCII protocol allows control from Windows/Mac/Linux using either USB Virtual COM drivers or RS485. Additionally, multiple devices can be connected to one RS485 bus, allowing control of many devices from one USB port.

The KTA-225 has relays with 12 V DC coils and requires an 9 to 15 V DC supply.

This controller is based on the hardware of the KTA-223 controller, but the number of analog inputs has been increased at the cost of the digital inputs. It can be programmed as a stand-alone controller using the free, open source Arduino environment. Internally, the controller is “shield compatible”, allowing the use of many extension boards designed for the Arduino Deumilanove. As shipped the controller is loaded with a sketch or program that receives simple commands over the USB or RS485 serial port and switches relays or responds with the status of the analog inputs.

Multiple controllers can be connected to one or more PCs in an RS485 network. Each controller can be assigned an address and will respond to commands addressed to them.


Features:

  • 8 Relay Outputs 5A 250VAC
  • 8 Analog Inputs (10 bit)
  • Connections via Pluggable Screw Terminals
  • 0-5V 0-3.3V or 0-20mA Analog Inputs, Jumper Selectable
  • 5A Relay Switching
  • Power Indicator LED
  • All enclosed in Professional looking plastic case
  • Arduino Compatible
  • Accepts Arduino Shields (Ethernet / XBee)
  • USB Virtual Serial Port or RS485 Input
  • Easily connect multiple units far apart by RS485
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      Assembled and Tested  
      KTA-225  
      0  
    Quantity:  

    Missile Switch Cover - Red
    Click here for specs, downloads, and more pictures.
    Description: It's not what project you have in mind that may use a rocket launch switch... The question is what project will you come up with once you have one in hand? Everyone has a proverbial missile to launch.

    The hot red safety cover protects a toggle switch from accidentally being turned on. When flipped up, the user has full access to a switch underneath. Upon closing the cover, the cover will force the switch arm back into the lower position - a safety mechanism so you can quickly hit the cover down and deactivate the switch.

    Note: This is the cover for the switch only.

    Dimensions:
    • 1.5cm (W) X 5cm (L) X 2.75cm (H)
    • 0.59in (W) X 1.96in (L) X 1.08in (H)
    • Note: Taken with a tape measure, so allow for extra room
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      Assembled and Tested  
      COM09278  
      34  
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    Battery Holder - 4xAA Cube with 5 inch tinned leads
    Click here for specs, downloads &/or more pictures...
    Description: Simple 4 Cell AA Battery holder with 5" tinned leads, cube configuration.
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      Component or Part  
      PRT00550  
      11  
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    RJ45 Ethernet MagJack-Compatible
    Click here for specs, downloads, and more pictures.
    Description: Ethernet is now ubiquitous with embedded systems. Before you can get your set-top box on the internet, you'll need one of these single port, RJ45 ethernet jacks with built in transformer (magnetics), status LEDs, and shielding.
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      Assembled and Tested  
      PRT08534  
      9  
    Quantity:  

    FTDI Cable 5V
    Click here for specs, downloads &/or more pictures...
    Description: The FTDI cable is a USB to Serial (TTL level) converter which allows for a simple way to connect TTL interface devices to USB. The I/O pins of this FTDI cable are configured to operate at 5V.

    The FTDI cable is designed around an FT232RQ, which is housed in a USB A connector. The other side of the cable is terminated with a 0.1" pitch, 6-pin connector with the following pinout: RTS, RX, TX, 5V, CTS, GND (RTS is the green cable and GND is black).

    This cable has the same pinout and functionality as our FTDI Basic Breakout board; you can use it to program your Arduino Pro, Pro Mini and Lilypad. For use with those boards, align the black and green wires of the FTDI cable with the 'BLK' and 'GRN' labels on the PCB.

    There are pros and cons to the FTDI Cable vs the FTDI Basic. The FTDI Basic has great LED indicators, but requires a Mini-B cable. The FTDI Cable is well protected against the elements, but is large and cannot be embedded into a project as easily. The FTDI Basic uses DTR to cause a hardware reset where the FTDI cable uses the RTS signal. The cable is 1.8m or about 6ft long.
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      Assembled and Tested  
      DEV09718  
      3  
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    Force Sensitive Resistor - Square
    Click here for specs, downloads &/or more pictures...
    Description: This is a force sensitive resistor with a square, 1.75x1.5", sensing area. This FSR will vary its resistance depending on how much pressure is being applied to the sensing area. The harder the force, the lower the resistance. When no pressure is being applied to the FSR its resistance will be larger than 1MΩ. This FSR can sense applied force anywhere in the range of 100g-10kg.

    Two pins extend from the bottom of the sensor with 0.1" pitch making it bread board friendly. There is a peel-and-stick rubber backing on the other side of the sensing area to mount the FSR.

    These sensors are simple to set up and great for sensing pressure, but they aren't incredibly accurate. Use them to sense if it's being squeezed, but you may not want to use it as a scale.

    Dimensions:
    • Overall length: 3.5"
    • Overall width: 1.75"
    • Sensing area: 1.75x1.5"
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      Assembled and Tested  
      SEN09376  
      16  
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    Universal Mono Pre-Amplifier (Assembled)
    Click here for specs, downloads and more pictures.
    Description: This assembled module has been developed as a pre-amplifier for a number of audio applications where there is insufficient input signal. Applications as a microphone pre-amplifier or for level correction. Specifications power supply: 10-30V DC / 10mA output impedance: 1Kohm adjustable output level: max. 40dB frequency range: 20Hz to 20kHz ± 3dB max. input signal: 40mV PCB dimensions: 1.2" x 1.7" options for power supply: K1823

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K1803-TBA  
      5  
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    DIGITAL PANEL METER (Assembled)
    Click here for specs, downloads, and more pictures.
    This panel meter is an almost ideal replacement for the traditional moving-coil type instrument. Its accuracy is many times better. The high precision and stability offered by this meter are illustrated in the technical specifications. As it is very compact, this unit can be built into all kinds of housings or even into existing equipment. Specifications supply voltage: 5V DC / 250mA display: +999mV and -99mV full-scale overload indication: positive and negative resolution: 1mV input impedance: 100Mohm PCB dimensions: 1.3" x 2.6" recommended transformer: - (K2032)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2032-TBA  
      3  
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    Electronic Transistor Ignition for Cars (Assembled)
    Click here for specs, downloads, and more pictures.
    Description: Gives your car the feel of an expensive luxury car. Better starting and smoother running, particularly at very high and very low RPM. Lower fuel consumption, less pollution, lower servicing costs. Drive economically, drive electronically. Only for petrol/gasoline engines. Only for cars with negative ground.

    Specifications:
    • Max. current: 4A
    • Connection speed: up to 500kHz
    • PCB dimensions: 2.8" x 1.4"
    • Recommended housing: VG304

    Extra Info:
    For use on a 6V system replace next parts :

    • R1 and R2 : 150 ohm / 1W
    • R3 : 68 ohm 1/4W
    • R5, R6 and R7 : 68 ohm / 1W

    NOTE: Please allow 24 hours for assembly!

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      Assembled and Tested  
      K2543-TBA  
      3  
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    7.9" LED DISPLAY (Assembled)
    Click here for specs, downloads, and more pictures.
    CLOSEOUT ITEM - WHILE STOCK LASTS.

    This kit contains a 7-segment display consisting of 12 LEDs per segment and 4 LEDs for the decimal point. Using an additional power supply, which does not have to satisfy any strict standards, it may be easily connected to existing circuit .

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2567-TBA  
      2  
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    7.9" LED DISPLAY "COMMON CATHODE" (Assembled)
    Click here for specs, downloads, and more pictures.
    This kit contains a 7-segment display consisting of 12 LEDs per segment and 4 LEDs for the decimal point. Using an additional power supply, which does not have to satisfy any strict standards, it may be easily connected to existing circuit .

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2568-TBA  
      2  
    Quantity:  

    UNIVERSAL POWER SUPPLY 5-14V DC / 1A (Assembled)
    Click here for specs, downloads, and more pictures.
    Suits all Velleman kits requiring a regulated power supply between 5 and 12V DC, and no more than 1A.

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2570-TBA  
      3  
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    Infrared Proximity Sensor - Sharp GP2Y0A21YK
    Click here for specs, downloads &/or more pictures...
    Description: Infrared proximity sensor made by Sharp. Part # GP2Y0A21YK has an analog output that varies from 3.1V at 10cm to 0.4V at 80cm. The sensor has a Japanese Solderless Terminal (JST) Connector. We recommend purchasing the related pigtail below or soldering wires directly to the back of the module.
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      Assembled and Tested  
      SEN00242  
      4  
    Quantity:  

    UNIVERSAL STEREO PRE-AMPLIFIER (Assembled)
    Click here for specs, downloads and more pictures.
    Specifications:
    • frequency range: 40Hz - 30kHz (-3dB)
    • max. input voltage: 50mVrms
    • adjustable gain: 40dB max.
    • output impedance: 1Kohm
    • power supply: 10-30V DC / 5mA
    • PCB dimensions: 1.7" x 2.6"
    • recommended transformer: K1823

    (K2572)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2572-TBA  
      9  
    Quantity:  

    STEREO RIAA PRE-AMPLIFIER (Assembled)
    Click here for specs, downloads and more pictures.

    RIAA stereo pre-amplifier for md pick-ups. Low noise.

    Specifications:

    • supply voltage: 10 -30V DC / 5mA regulated
    • gain (1kHz): 35dB
    • input signal: 5 - 10mV
    • input impedance: 47Kohm
    • PCB dimensions: 1.7 x 2.6"
    • recommended transformer: K1823


    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2573-TBA  
      4  
    Quantity:  

    UNIVERSAL START/STOP TIMER (Assembled)
    tn_k2579-tba_general.png
    Miniature timer for all applications requiring a delay of up to 60 minutes. The control range may be adjusted.

    Specifications:
    • power supply: 15V DC / 55mA
    • relay: 3A / 220V switchable
    • time interval (without modifications): adjustable from 0 to 15 minutes
    • PCB dimensions: 1.5" x 2.7" (K2579)


    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2579-TBA  
      3  
    Quantity:  

    WINDSHIELD WIPER ROBOT OR INTERVAL TIMER (Assembled)
    Click here for specs, downloads, and more pictures.
    Up to 3 different time intervals (2 - 10 - 15 seconds) can be selected for the windshield wipers of your car. It can also be used for automatic slide projection. Specifications relays on PCB: 2 inverters power supply: 12 - 15V DC PCB dimensions: 3.2" x 2.2" recommended housing: - recommended transformer: -

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2599-TBA  
      1  
    Quantity:  

    POLICE SIREN (Assembled)
    Click here for specs, downloads and more pictures.
    Enter the world of amazing electronic sounds and noises. Create or imitate sirens of all kinds by adjusting 3 trimmers. Powerful sound with a 2W amplifier on the PCB.

    Specifications:
    • power supply: 8 - 14V DC / 1A
    • dimensions: 3.1" x 2.2"
    • recommended housing: -
    • recommended transformer: - (K2604)


    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2604-TBA  
      2  
    Quantity:  

    AM/FM ANTENNA AMPLIFIER (Assembled)
    Click here for specs, downloads and more pictures.
    This amplifier provides 22dB gain wherever you need it. DC power supply directly or via the coax cable. Metal housing included.

    Specifications:
    • gain: 22dB
    • power supply: 12V to 15V / 3mA
    • input- and output impedance: 50 - 75ohm
    • frequency range: 10MHz to 150MHz
    • dimensions: 3.4" x 1.4" x 0.9"
    Extra Info:
    - Hints

    Put the amplifier as close as possible to the antenna.

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2622-TBA  
      2  
    Quantity:  

    DIGITAL TACHOMETER (Assembled)
    Click here for specs, downloads, and more pictures.
    For cars or motorcycles with a petrol engine. May be used as a general purpose revolution counter. Specifications range: 100 - 9900 revolutions/minute 2 digit display easy calibration power supply: 10 - 15V DC / 200mA PCB dimensions: 3.2" x 1.8" + 3.2" x 2.4" front panel dimensions: 2.8" x 3.5" Extra Info - Hints See special instructions in manual for use with electronic ignition. (K2625)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2625-TBA  
      6  
    Quantity:  

    QUAD RELAY CARD (Assembled)
    Click here for specs, downloads, and more pictures.
    NEW - LOWER PRICE!
    Price was: $17.15

    Connecting a number of relays to the outputs of an electronic network may seem very simple, but in reality it might possibly create some problems regarding the cabling. This kit provides an attractive and compact alternative. Moreover, it can be assembled and connected very rapidly. Specifications 4 x 3A relay outputs power supply: 9V DC / 300mA pcb dimensions: 3.0" x 2.7" (k2633)

    Specifications:
    • 4 x 3A relay outputs
    • power supply: 9V DC / 300mA
    • pcb dimensions: 3.0" x 2.7" (k2633)


    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2633-TBA  
      8  
    Quantity:  

    QUAD TRIAC SWITCH CARD (Assembled)
    Click here for specs, downloads, and more pictures.
    Relays are usually used to switch AC voltages by means of an electronic control because of their simplicity. However, when switching occurs too frequently or too quickly the life time of the contact points is shortened considerably. This can be solved perfectly by replacing the relays with a triac. Using optocouplers, the entire interface network remains electrically isolated from the voltage that has to be switched. (K2634)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2634-TBA  
      9  
    Quantity:  

    Speed Controller (Assembled)
    Click here for specs, downloads, and more pictures.
     (Out of Stock)Specifications:
    • Voltage supply: 110-240V
    • Load voltage: 24-240V AC / 5.5A max.
    • Adjustable minimum r.p.m.
    • Low interference level
    • Range: 5-95%
    • PCB dimensions: 5.1" x 3.0"
    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2636-TBA  
      0  
    Quantity:  

    LIQUID LEVEL CONTROLLER (Assembled)
    Click here for specs, downloads, and more pictures.
    Forgotten to turn off the tap, leaking washing machines, water level dropping in your aquarium, rain tank or water tank suddenly dry or over flowing, water in your cellar, etc. Such situations are often the cause of trouble and financial burden. Prevention is better than cure. So use this fluid detector. This multifunctional device is easy to use in a variety of applications : 1) LED control of set fluid level : LOW, MIDDLE, HIGH ; 2) Controller : the relay automatically switches a pump and/or valve to keep the fluid level between the LOW and HIGH marks ; 3) Alarm : if the sensor detects a level which is too high or too low (selectable), the relay will operate a bell or other alarm device. Specifications power supply: 12-14V AC or 16-18V DC / 100mA relay output: 240V / 3A max. dimensions: controller PCB: 4.1" x 2.4" sensor PCB: 4.1" x 1.0" (K2639)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2639-TBA  
      2  
    Quantity:  

    FROST INDICATOR (Assembled)
    Click here for specs, downloads, and more pictures.
    Drive more safely in freezing weather. This kit uses a flashing LED to indicate a road temperature close to freezing point ; below that point the LED is on continuously. A reliable temperature sensor with mounting stud is included.

    Specifications
    power supply: 10 - 15V DC / 25mA
    PCB dimensions: 2.2" x 1.7"

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2644-TBA  
      2  
    Quantity:  

    ELECTRONIC WATCHDOG (Assembled)
    Click here for specs, downloads, and more pictures.
    A circuit that produces a natural sounding barking dog with a sensitive "ear" to everything that comes near it. It is a faithful watchdog, which never sleeps and never has to be taken out for a walk. Specifications power supply: 2 x 8V AC or 9 - 12V DC / 500mA choice of two different "dog sounds" reacts to surrounding noise with adjustable sensitivity speaker output: 2W at 4ohm PCB dimensions: 5.6" x 3.0" Extra Info - Hints If bark frequency is to low (very slow bark) reduce de value of C3 (ex. 1500pF). If microphone is to sensitive, lower the value of R20 and increase the value of R2. If there is a metallic background noise, put a 33pF capacitor from pin 7 of IC3 to ground. (K2655)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K2655-TBA  
      3  
    Quantity:  

    DUAL ELECTRONIC DICE (Assembled)
    Click here for specs, downloads, and more pictures.
    Board games provide an excellent source of pleasant and healthy entertainment. However, the dice can be a constant source of distraction : they fall off the table, allow cheating, one or more players don't see the results properly and so on. There can be no doubt at all about the result displayed on this electronic dice module, and cheating is out of the question. Two fully independent dice. At your choice you can play with one or two dice. Displays are switched off automatically after 30 seconds to save battery power. (K3400)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K3400-TBA  
      2  
    Quantity:  

    MULTIFUNCTION CAR INTERIOR ILLUMINATION (Assembled)
    Click here for detailed specs.
    If, like most of us, you do not have infrared eyesight, then at times you have probably found yourself fumbling for the ignition switch or seat belt in the dark. For people like you we have developed this solution. With extra push button and battery protection.



    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K3500-TBA  
      4  
    Quantity:  

    PARKING RADAR (Assembled)
    Click here for specs, downloads, and more pictures.
    NEW - LOWER PRICE!
    Price was: $36.26

    If you have problems parking then this kit is for you. Using (ultrasonic) sound waves, whose frequency is beyond our range of hearing, we can "measure" a distance. Consequently, a sensor mounted at the back of the car can give an indication of the distance between your car and the car parked behind you or other obstacles (only at the same height as the sensor). When the preset minimum distance is crossed, an audible signal is generated. (K3502)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K3502-TBA  
      2  
    Quantity:  

    CAR ALARM (Assembled)
    Click here for specs, downloads, and more pictures.
    The alarm detects sudden voltage drops of the battery when the interior, trunk, or hood lights are switched on. To ensure correct operation, a number of control indications have been included, such as : flashing LED to indicate that the alarm is in standby mode after a set time (after you have left the car). Pre-alarm (built-in buzzer) to indicate that the alarm is activated, so that you will not forget to switch it off. (K3504)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K3504-TBA  
      2  
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    CAR LIGHT WARNING ALARM (Assembled)
    Click here for specs, downloads, and more pictures.
    This head light indicator may be set for one or two functions. To indicate that the head lights (or the side lights) should be switched off after switching off the ignition contact (battery protection). Or to indicate that the head lights should be on once ignition contact is switched on (obligatory in some countries). (K3505)

    Specifications
    continuously repeated alarm tone for lights ON (may be disabled)
    repeated alarm tone for lights OUT
    only 3 wires are required for hook-up
    supply voltage: 12V DC
    PCB dimensions: 1.9" x 2.2"

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K3505-TBA  
      2  
    Quantity:  

    ANTI SPEAKER PLOP FOR K3503 CAR AUDIO AMPLIFIER (Assembled)
    Click here for specs, downloads and more pictures.
    Closeout item. Limited Quantity Available.
    Prevent any annoying plop occurring in speakers when switching the K3503 car booster on and off. In addition, it provides protection for the MOSFET transistors and the car battery (monitoring the voltage drop). The entire circuit can be built into the car booster housing. (K3506)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K3506-TBA  
      3  
    Quantity:  

    REMOTE CONTROLLED CAR ALARM SYSTEM (RF) (Assembled)
    Click here for specs, downloads, and more pictures.
    This outstanding car alarm is full of potential, able to connect up with and operate a variety of sensors. In addition, the remote control facility (RF) allows the central locking system to be operated together with the alarm. (K3511)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K3511-TBA  
      4  
    Quantity:  

    200W MONO / STEREO AMPLIFIER (Assembled)
    Click here for specs, downloads and more pictures.
    Universal, robust and compact are the words to describe this amplifier. Universal : A stereo or a mono amplifier. Three input sensitivities are selectable. Robust : Overload and short-circuit protection, protection against incorrect power supply polarity and thermally protected too (option for K4005B). Speaker transient suppression. (K4004B)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K4004B-TBA  
      2  
    Quantity:  

    Power Supply for K4004B/K4005B (Assembled)
    Click here for specs, downloads, and more pictures.
    Description: Power Supply for K4004B/K4005B (Assembled)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K4006-TBA  
      1  
    Quantity:  

    STEREO TUBE AMPLIFIER / CHROME VERSION (Assembled)
    Click here for specs, downloads and more pictures.
     (Out of Stock)Please note: This item is not carried ex-stock in our warehouse. This item will ship to you around 1 week after you submit your order.

    For most of us a high power tube amplifier is unaffordable. This kit changes that, so that now everybody can enjoy that sublime "tube sound". The sound of tubes has never been surpassed, nor by transistors, nor by FETs. In the course of developing this amplifier, special attention was given to the housing so that the expensive tubes are on display in a way that is very pleasing to the eye. The weakest point of an tube amplifier are the output transformers ; that's the reason why we use ultra-linear and over-rated output transformers (toroidal) to guarantee a rich bass response. To extend the life of the precious valves, the amplifier is provided with an switch on delay, so that the high voltage is switched on when the tubes are warmed up. (K4040)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K4040-TBA  
      0  
    Quantity:  

    DIGITALLY CONTROLLED PREAMPLIFIER (Assembled)
    Click here for specs, downloads and more pictures.
    CLOSEOUT ITEM. LIMITED QUANTITY AVAILABLE.

    When developing this pre-amplifier we opted for DIGITAL control of all functions, so that it contains no potentiometers at all ! All functions, such as volume, tone control, balance and input selection can be operated using push buttons and a LED display gives a clear indication of all settings. (K4100)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K4100-TBA  
      1  
    Quantity:  

    GUITAR HEADPHONE AND PREAMPLIFIER (Assembled)
    Click here for specs, downloads and more pictures.
    An electric guitar cannot be connected to just any amplifier or audio installation. This pre-amplifier has been designed for this purpose and provides you with a headphone output, allowing you to practice without disturbing others. Moreover, it is fitted with a special device for tone adjustment, allowing anyone to create their personal sound. (K4102)

    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K4102-TBA  
      2  
    Quantity:  

    STEREO VU-METER 2 x 10 LEDS (Assembled)
    Click here for specs, downloads, and more pictures!
    Features:
    • Stereo VU meter with 2 x 10 LEDs (dot or bar indicator) and an adjustable input.
    • Included in package :
      • 1 front panel suitable for horizontal or vertical mounting.


    NOTE: Please allow 24 hours for assembly!
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      Assembled and Tested  
      K4305-TBA  
      4  
    Quantity:  

    2-CHANNEL LOUDSPEAKER PROTECTION - 220V AC (Assembled)
    Click here for specs, downloads and more pictures.
    This stereo speaker protection prevents switch-on clicks and DC components on the output of the amplifier connected.

    Specifications:
    • Supply Voltage: 220VAC
    • switch-delay: ± 6 seconds
    • DC protection: +1V/-1V
    • max. input voltage: 200Vpp + DC
    • max. switching current: 10A
    • LED indication for: WAIT (switch-on delay) and ERROR (DC on speaker output)
    • PCB dimensions: 2.2" x 4.9"
    • recommended housing: WCAH2851


    NOTE: Please allow 24 hours for assembly!
    Read More
      Assembled and Tested  
      K4700-TBA  
      1  
    Quantity:  

    TELEPHONE AMPLIFIER (Assembled)
    Click here for specs, downloads and more pictures.
    This telephone amplifier may be used as a free-standing amplifier with speaker, e.g. to listen to a telephone conversation, or the output may be connected to an amplifier or mixing panel (e.g. radio stations).

    Specifications:
    • input: isolation transformer interface
    • speaker output: 0.5W / 8ohm
    • line output: 0dB (0.775Vrms)
    • power supply: 7 - 9V AC or 9 - 12V DC / 150mA
    • PCB dimensions: 2.5" x 2.1"
    • recommended housing: G416
    • recommended transformer: -
    • recommended adapter:

    (K4900)

    NOTE: Please allow 24 hours for assembly!
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    LIGHT COMPUTER (Assembled)
    Click here for specs, downloads, and more pictures.
    Sixteen different programs and seven outputs make this light computer a unique showpiece. This kit can find applications in party lighting, discotheques, advertisement lighting, signaling, etc. To be able to view the programs directly, each output is provided with a LED. The complete circuit can be installed so that all operations and LEDs are available from the front panel. To enhance the spectacle further, an unlimited number of circuits can be connected together to work synchronously. Moreover, two programs are provided which are specially adapted to operate two light computers in cascade. Specifications 7 triac outputs: 1.5A max. supply voltage for the lights: 24VAC to 240VAC supply voltage of the circuit: 7.5 - 9VAC / 250mA 16 programs speed controllable input for external clock PCB dimensions: 5.3" x 3.1" recommended housing: WCAH2852 recommended transformer: 1090030M recommended adapter: PS905USA (K5201)

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    STROBOSCOPE (Assembled)
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    Flashing light effects for discos. Make your own snapshots and "lightning" light effects. Flash frequency adjustable from 2 to 20Hz. Specifications: power supply: 110V - 120V AC PCB dimensions: 3.4" x 2.6" (K5300)

    NOTE: Please allow 24 hours for assembly!
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    ADVERTISEMENT LED DISPLAY WITH RED LEDS (Assembled)
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    NEW - LOWER PRICE!
    Price was: $69.48

    Create your own message for personal advertisements. Can be used for home, shop, car or truck... 12 self definable characters, which are made by de customer. 150 bright LEDs supplied with the kit. Many spectacular light effects on the message, (scrolling, blinking, rolling, panning...). Adjustable effect speed. Vertical or horizontal position possible. Fixed displaying is possible (no effects). Different displays can be synchronized, to create longer messages, or to create giant advertisements. Special housing available : B5600. Extra LEDs available : K/LEDHR (red) and K/LEDHG (green). (K5600R)

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    TEMPERATURE SENSOR (Assembled)
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    This kit has been developed especially to be combined with the K6000RS or K6002 to build a temperature regulation and control system. The advantage of a separate sensor lies in the fact that the distance between the actual controller and the sensor is of no importance. (K6001) Specifications sensor temperature range: -40°F to 302°F pulse width modulation: 200µsec/°F linearity from -10°C(14°F) to 50°C(122°F): better than 0.5% tested up to 164' (distance between sensor PCB and controller) supply voltage: 12V DC (± 2V) non-regulated current: 20mA max. PCB dimensions: 1.8" x 1.9" (K6001)

    NOTE: Please allow 24 hours for assembly!
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