Index

EK001
41017292

Practice oscillator for e.g. learning telegraphy. With built-in speaker.
EK002
41017270

Three-dimensional robot with a light-controlled synthesizer (stepped tone generator a.k.a. Atari Punk Console).
EK003
41017561

Device for testing LEDs, with pre-settable current control.
EK004
41016257

Switching (changeover) relay with settable time delay.
EK006
41015615

Relay board with eight changeover relays under serial control.
EK009
41016260

Bipolar linear power supply with adjustable voltage regulation and full wave rectification.
EK010
41015617

PWM generator with control of frequency and pulse width. The pulse width can also be voltage controlled.
EK011
41015613

Pulse generator with large frequency range.
EK014
41016266

Optically isolated I/O board for level shifting and protection. Four inputs and outputs.
EK019
41016510

Preamplifier with two channels and adjustable gain.
EK020
41016514

Relay with toggle function.
EK021
41033066

Halloween ghost kit with LEDs and touch function. SMD components.
EK022
41017402

Amplifier with electret microphone.
EK023
41016709

Voltage regulator 78xx/78Lxx.
EK025
41017062

Triac-controlled switch for AC loads.
EK027
41017903

Voltage-controlled DC motor driver with forward and reverse.
EK028
41024599

Electronic dice with automatic shutdown.
EK029
41024638

Decision maker with transistors and LEDs.
EK030
41024664

Ring oscillator with transistors and LEDs.
EK031
41024621

Adjustable linear voltage regulator with rectifier.
EK032
41023942

USB powered dark-activated light.
EK033
41023942

Mini amplifier with speaker.
EK034
41024242

LED blinker with 24 LEDs.
EK035
41023942

Tricky wire game to test your hand-eye coordination.
EK036
41032769

Shield for Arduino boards with screw terminals and experiments.
EK037
41035972

SMD kit with 13 red LEDs and touch function.
EK038
41036664

A simple audio amplifier with 1W of mono power and a connection for e.g. smartphones.
EK040
41037857

4-channel mono audio mixer with tilt EQ.