Practical Electronics No 4 2026

Practical Electronics No 4 2026

Read in the issue 4 Practical Electronics 2026


Versatile Battery Checker by Tim Blythman.
This useful tool allows you to check the condition of all manner of batteries, including Li-ion, LiPo, lead-acid, SLA, AGM, alkaline and zinc-carbon types. It can test 12V or 24V vehicle starter batteries, 9V batteries, plus D, C, AA and AAA cells and more.

Power Rail Probe by Andrew Levido.
This is one of those pieces of test equipment that you don’t really need, until you do. In conjunction with an oscilloscope, it allows the accurate measurement and evaluation of ripple, switching noise and transients riding on DC supply rails.

The Pico 2 Audio Analyser by Tim Blythman.
Using an inexpensive Raspberry Pi Pico 2 microcontroller board and not much else, we can generate and analyse audio signals. It has oscilloscope and spectrum modes and can run a sweep to plot a frequency response or perform harmonic analysis.

Contents:

English | 84 pages | PDF | 31.6 MB

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