This application is a great reference for electronic engineers. It will be useful for both beginners and experienced electronics enthusiasts. This application contains over 100 guides and calculators for various areas of electronics:

Basic
- Omn law
- Power, voltage and current
- Resistive voltage divider
- Wheatstone Bridge
- RC circuit time constant
- Battery Life

Resistors
- Resistor color codes
- Resistor color codes
- SMD resistor codes
- SMD resistor codes
- EIA-96 Encoding
- Standard values finder for resistor
- Series resistors
- Parallel resistors
- E series

Capacitors
- Ceramic disc capacitors codes
- Film capacitors codes
- Capacitor working voltage codes
- Film capacitors color codes
- SMD Tantalum electrolytic capacitors codes
- Series capacitors
- Parallel capacitors

Inductors
- Inductor color codes
- Inductor color codes
- SMD inductors codes
- SMD inductors codes
- Series inductors
- Parallel inductors

Diodes
- Diodes
- Rectifier diodes
- Signal diodes
- Varicap
- Zener diode

Transistors
- Bipolar transistors
- Metal-Oxide-Semiconductor Field-Effect Transistor
- Junction Field-Effect Transistor
- Darlington transistor pair

Thyristors
- Thyristors
- Gate Turn-Off Thyristor
- TRIAC
- DIAC

PowerSupplies
- AC parameters and rectified value
- Half-wave rectifier
- Full-wave rectifier
- Bridge rectifier
- LM317 Voltage regulator calculator
- LM317 Current Source calculator
- Capacitive power supply
- Zener reference voltage source

LED
- LED Single Resistor calculator
- LED Series Resistor calculator
- LED Parallel Resistor calculator
- 7-segment LED display
- Decoder (driver) for 7-segment displays CD4511

Photocells
- Photodiode
- Photoresistor
- Phototransistor
- Optocoupler

OP
- Non-Inverting OP Amplifer Gain calculator
- Inverting OP Amplifier Gain calculator
- OP Voltage integrator
- OP Voltage Differentiator
- OP Voltage comparator

Frequency
- Capacitor reactance
- Reactance of an inductance coil
- Gain conversion to decibels
- dBm to Watts conversion
- T-Attenuator
- Pi-Attenuator
- L-Attenuator
- Bridged T-Attenuator

Filters
- RC Low Pass Filter
- RC High Pass Filter
- RC Band pass filter
- RL low-pass filter
- RL high-pass filter

Timers
- Astable multivibrator
- Monostable (waiting) multivibrator
- Bistable multivibrator
- NE555 Astable Multivibrator
- NE555 Monostable Multivibrator

Logic
- AND logic gate
- OR logic gate
- NOT logic gate
- NAND logic gate
- NOR logic gate
- XOR logic gate
- XNOR logic gate

This app can switch between light and dark themes, and also is translated into six languages:
- English
- French
- German
- Russian
- Spanish
- Ukrainian

This application's contents and languages are updated in new versions.