Practical Electronics No 11 2023

LC Meter Mk3 by Charles Kosina. This LC meter measures a wide range of capacitances and inductances, from less than 1pF to more than 1.2nF, and from less than 100nH to more than 2.5mH.
DC Supply Filter for vehicles by John Clarke. This DC Supply Filter solves two big problems with 12V DC vehicle supplies: supply noise messing with a device’s performance and voltage spikes possibly frying it.
PM (particulate matter) ‘Dust’ Sensors by Jim Rowe. In this last article on low-cost air quality sensors, we look more closely at particulate matter (PM) sensors, also called ‘dust’ or ‘smoke’ sensors.
Anodising Aluminium at Home by Phil Prosser. Fancy turning your hand to anodising aluminium? As it turns out, as long as you take due care (especially with the chemicals used), it isn’t that hard to do it yourself.
Max’s Cool Beans by Max The Magnificent. Arduino Bootcamp - Part 11.
Circuit Surgery by Ian Bell. Gyrators Part 3 - Parametric Equaliser Circuits.
Audio Out by Jake Rothman. Discrete audio op amp - Part 3.
Electronic Building Blocks by Julian Edgar. Long-distance Remote Control.