Description Ordering
K2001 SMD Soldering Trainer Kit

SMD Soldering Trainer Kit

K2001

This simple SMD Trainer project is a great way to practice soldering a variety of surface-mount devices.
K2620 Five-Way LCD  Panel Meter Kit

Five-Way LCD Panel Meter Kit

K2620

This simple and cheap device has many uses, but it’s mainly intended to replace multiple panel meters. It can also be used as a small additional text screen for PC, Raspberry Pi or any other computer with USB.
K2930 Opto-Isolated Mains Relay

Opto-Isolated Mains Relay

K2930

If you need to switch mains voltages, say from a micro's out- put or any other low voltage source, you need to isolate them from each other. That&rsquos what this project does - it's easy to build and keeps mains voltages locked away from the controller and you! Virtually any low voltage source will do - from 2.7 to 10V.
K3220 Universal Regulator Kit

Universal Regulator Kit

K3220

(EA Aug '97) A flexible circuit that provides preset voltage output of 3, 5, 6, 9 or 12V DC. Suitable for powering a wide range of DC low power circuits, such as running a personal CD/radio from a car cigaret
K6042 240V Mains Soft Starter Kit

240V Mains Soft Starter Kit

K6042

(SC April '12) Are you alarmed by the juicy "splatt" from your mains power point when you plug in something like a large plasma TV set? Do you sometimes burn out light and power point switches because of
K6049 240V Mains Brownout Protector Kit

240V Mains Brownout Protector Kit

K6049

The Brownout Protector is designed to protect single-phase induction motors in fridges, freezers, pumps etc from burnout if they attempt to start during a brownout. It will switch off the power if the voltage falls below a set threshold.
K6340 Mini Switching Regulator

Mini Switching Regulator

K6340

(SC Feb '12) This tiny regulator board outputs 1.2-20V from a higher voltage DC supply at currents up to 1.5A. It's small, efficient and cheap to build, with many handy features such as a very low drop-ou

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