Tools

Practical calculators for electronics and PCB design, heat loss and heat pump planning.

Electronics

Over a hundred calculators for components, analogue circuits, filters, timers and power supplies, each with its equations and assumptions.

Calculate track widths, impedance, vias, power loss and signal timing, with PCB stack-up references and illustrated guides.

Room-by-room heat loss for a UK home, and the heat pump, radiators, pipework, hot water, running costs and noise that follow from it.