GeoGebra (a portmanteau of geometry and algebra) is an interactive geometry, algebra, statistics and calculus application, intended for learning and teaching mathematics and science from primary school to university level. It is nice that it works on your browser without installation using multiple languages including Finnish. That’s the way I tested it by going to →
A wire stripper is used in removing insulation from around a wire or cable. Sure, you can do this with a pair of scissors, wire cutters or even a utility knife, but using a tool specifically designed for this purpose makes life easier if you work with wires often. Here are three wire strippers I →
The best part about cordless drills is well, they are cordless! The worst part of them is that they have limited battery life. There are different types of battery packs for different tools. There are different voltages and different capacities (mAh or Ah). The ampere-hours (labeled Ah) denote the maximum amount of charge the battery →
Parkside is the tool brand from the German supermarket chain LIDL. They offer very affordable tools. Parkside tools are aimed at DIYers. Many of their tools are rebrands of Scheppach. Many if the tools offer extremely good value for money and they are more than perfect for DIY’ers or if you just need the tool →
By far the most used oscilloscope probes are the passive 10:1 attenuation probe. Next step in probe categories are active probes. Active probes succeed in practically eliminating reactive loading of the circuit under investigation by means of a small solid-state amplifier in the probe body adjacent to the tip. There are two main classes of →
This article is about measuring resistance, capacitance and inductance. The measurements described here talks about measuring components that not wired into any circuit. Resistors, Inductors and Capacitors are the most commonly used passive components in almost every electronics circuit. Out of these three the value of resistors and capacitors are commonly marked on top of →
Behringer Cable Tester CT100 is a pretty nice and cheap cable tester for all kinds of audio cables.The CT100 accepts many type of cable you might use in a recording or live performance situation: XLR, mono and TRS phone (¼”, 1⁄8″, TT), RCA and even MIDI. here are three operating modes: Cable Test, installed Cable →
TinySA is an amazing gizmo! I have already posted some video link on TinySA and here is some mode material on it. RF testing is getting quite popular these days, with many devices featuring wireless capabilities. However, RF test devices are quite expensive, or at least have been, as on few recent years many affordable →
I have have had for many years Mastech MS6811 cable tester. This tester model seems to be still selling typically at 15-30 Euros price range (and sometimes at higher price). Besides Mastech brands it is sold with different brand names for example AXIOMET and Sinometer. The MS6811 is designed to detect the most common wiring →
NOYAFA NF-8209 Network Cable Tester is used to measure cable continuity. It enables the measurement of connection errors in UTP / STP twisted pairs. The device is manufactured by SHENZHEN NOYAFA TECHNOLOGY CO., LTD and sold with several different brand names. NF-8209 Main features： 1. Two scan modes selectable: AC filter & Non AC filter. →