Velleman
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K/STARTULF

SOLDERING STARTER KIT

Ideal for beginners.
Features
K1803

UNIVERSAL MONO PRE-AMPLIFIER

This kit has been developed as pre-module 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: 10-30VDC / 10mA
  • output impedance: 1Kohm
  • adjustable output level: max. 40dB
  • frequency range: 20Hz to 20kHz ± 3dB
  • max. input signal: 40mV
  • PCB dimensions: 30 x 44mm (1.2" x 1.7")
K1823

1 AMP POWER SUPPLY KIT

This small power supply provides a regulated voltage, adjustable between 1.5 and 35 volts at 1 Amp. With the LM317 regulator remarkably better ripple and regulation characteristics are given than with conventional regulators. Current limiter and thermal overload protection are included in the IC. Supplied without heatsink.

 Specifications
  • output current: 1.5A max.
  • max. dissipation: 15W (cooled)
  • max. input voltage: 40VDC
  • PCB dimensions: 52 x 52mm (2.1" x 2.1")
K2543

ELECTRONIC TRANSISTOR IGNITION FOR CARS

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: 70 x 35mm (2.8" x 1.4")
K2572

UNIVERSAL STEREO PRE-AMPLIFIER

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"
K2573

STEREO RIAA PRE-AMPLIFIER

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"
K2579

UNIVERSAL START/STOP TIMER

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"
K2604

POLICE SIREN

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"
K2622

AM/FM ANTENNA AMPLIFIER

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"
K2625

DIGITAL TACHOMETER

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"