How SPARKA teaches it
Start with a useful bench-level picture, connect it to the Technician vocabulary and exam facts, then use the STEMulations to see what the circuit actually does.
Technician foundation
Electricity & Electronics
A practical-first path through the electronics concepts that support Technician exam study and real radio work.
Exam alignment
This series is written to reinforce the current 2026–2030 Technician (Element 2) pool while keeping the lessons useful beyond the test.
NEW MODEL SECTION
Open T5 Electrical PrinciplesT5 Electrical Principles — Exam-Ready Study Path
Four deeper study groups, official current-pool questions, explanation controls, and direct links back to the STEMulations that teach the concept.
What Makes Electricity Flow?1 of 16Voltage & Current2 of 16Ohm's Law3 of 16Electrical Power4 of 16Applied Lab: Decibels & Power RatiosExtra labAC vs DC5 of 16Conductors & Insulators6 of 16Series & Parallel7 of 16Applied Lab: Ohm’s Law in Series & ParallelExtra labCapacitors8 of 16Inductors9 of 16Impedance10 of 16Diodes & Transistors11 of 16Schematics12 of 16Transformers13 of 16Resonance14 of 16Test Instruments15 of 16SWR & Matching16 of 16