Explore
Find the right bench tool fast.
Search across calculators, lessons, project builds, simulator tools, repair guidance, PCB planning, and mentor prompts.
Safety first, always.
ElectroLab AI teaches theory, low-voltage electronics, and planning concepts. Mains voltage, switchboards, fixed wiring, high-current systems, and legal electrical work must only be performed by licensed electricians where required.
Open Safety CenterShowing 46 of 46
Low-voltage learning, theory, projects, and tools
Trade Calculators
Core trade maths for voltage, current, power, ratios, and field checks.
Circuit Simulator
Sketch low-voltage circuits today, with a simulation engine planned next.
Electronics Academy
Short lessons for parts, AC/DC theory, waves, and practical electronics.
Magnet & Coil Lab
Explore inductors, electromagnets, motors, generators, and induction.
Audio / Amplifier Lab
Audio paths, gain, filters, amplifier basics, and repair thinking.
Speaker & Crossover Lab
Speaker repairs, impedance, crossover frequency, and enclosure ideas.
RF / Radio Lab
Radio waves, frequencies, antennas, crystal radios, and tuning basics.
PCB Design Studio
Beginner PCB flow: schematic, footprints, layout, checks, and export.
DIY Build Projects
Hands-on, low-voltage builds with parts lists and learning goals.
Solar & Battery Projects
Battery runtime, solar charging, protection, and portable power ideas.
Repair Assistant
Fault-finding prompts for power, audio, connectors, switches, and boards.
AI Electrical Mentor
Apprentice-friendly explanations, checks, and safe next-step guidance.
Ohm's Law
Find current from voltage and resistance. Formula: I = V / R
Power
Calculate electrical power from voltage and current. Formula: P = V x I
Transformer Turns Ratio
Estimate secondary voltage from primary voltage and turns. Formula: Vs = Vp x Ns / Np
RC Time Constant
Find the charging time constant for a resistor-capacitor circuit. Formula: tau = R x C
RL Time Constant
Find the current-rise time constant for a resistor-inductor circuit. Formula: tau = L / R
RLC Resonance
Estimate the resonant frequency of an LC tank. Formula: f = 1 / (2pi sqrt(LC))
Speaker Crossover Frequency
Find first-order crossover frequency from impedance and capacitor. Formula: f = 1 / (2pi R C)
Solar Battery Runtime
Estimate battery runtime from capacity, voltage, load, and efficiency. Formula: hours = Ah x V x efficiency / load W
AC vs DC
DC flows one way. AC changes direction repeatedly and is used for power distribution.
Resistors
Resistors limit current, divide voltage, set bias points, and turn electrical energy into heat.
Capacitors
Capacitors store charge, smooth supplies, pass changing signals, and block steady DC.
Inductors
Inductors store energy in magnetic fields and resist changes in current.
Transformers
Transformers transfer AC energy through magnetic coupling and change voltage by turns ratio.
Amplifiers
Amplifiers use a small signal to control a larger signal for audio, sensors, and communication.
Speakers
Speakers use a voice coil in a magnetic field to move air and create sound.
Radio Waves
Radio uses electromagnetic waves to carry information through space.
Solar Basics
Solar panels provide variable DC power that needs regulation before charging batteries.
LED Flasher
Learn timing, polarity, current limiting, and breadboard layout. Parts: 555 timer, LEDs, resistors, capacitor, breadboard
Mini Amplifier
Build a small audio amp and understand gain, coupling, and noise. Parts: LM386 module or IC, speaker, potentiometer, capacitors
Solar Phone Charger
Learn solar input, battery protection, boost conversion, and load limits. Parts: Solar panel, charge controller module, battery pack, USB boost module
Electromagnet
See magnetic fields from current and learn why coils need current limits. Parts: Enamelled wire, iron bolt, low-voltage battery, switch
Crystal Radio
Explore resonance, detection, antennas, and radio waves without a battery. Parts: Coil, variable capacitor, diode, high-impedance earphone, antenna
Speaker Crossover
Split audio bands and learn how filters protect and shape speakers. Parts: Capacitors, inductors, resistors, speaker drivers
Bench Power Supply
Create an adjustable low-voltage supply for electronics testing. Parts: DC supply module, enclosure, terminals, fuse, display
Simple Alarm Circuit
Use a transistor as a switch and build a practical sensor circuit. Parts: Buzzer, transistor, reed switch, resistor, battery
Repair Assistant
Fault-finding flow for dead, hot, noisy, intermittent, and low-voltage electronics problems.
AI Electrical Mentor
Guided prompt bench for explanations, quizzes, safe questions, and practical next checks.
PCB Design Studio
Beginner workflow for schematics, footprints, board layout, routing, checks, and first power-up.
Circuit Simulator
Low-voltage circuit canvas with components, wiring, example circuits, and circuit checks.
Safety Center
Clear boundaries for mains voltage, fixed wiring, batteries, first power-up, and licensed electrical work.
Build Planner
Project parts checklist, readiness checks, first measurements, and build notes for low-voltage projects.
Formula Sheet
Core electrical, electronics, timing, resonance, audio, transformer, and battery formulas.
Glossary
Plain-language definitions for electrical, electronics, repair, audio, PCB, and safety terms.
Practice Quiz
Multiple-choice checks for formulas, parts, safety, speakers, PCB basics, and batteries.