Projects and Circuits
14 Intelligent Touchscreen Lathe Speed Controller. Automatically adjust your lathe’s speed to suit materials, manually select speed and direction; plus constant display of the lathe’s status.
22 Super-portable Twin Dipole Guitar/PA Speaker.This easy-to-build, portable guitar/PA speaker is LOUD and sounds great!
28 Using Cheap Asian Electronic Modules - Part 19. Learn to use a low-cost NFC (Near-Field Communication) shield for Arduino.
32 Super Digital Sound Effects Module - Part 2. Assembly of this powerful sound effects module with advanced controls.
40 White Noise Generator. A very simple and cheap-to-build PIC-based white noise source that does not repeat over any short time frame and has a wide variety of uses.

Series, Features and Columns
10 Techno Talk. Just my cup of tea! Yours too?
12 Net Work. The rapid transformation of electricity generation in the UK and the rise of automotive smart systems. Plus, updates on SpaceX, Fluawei and Internet radio.
42 Circuit Surgery. Understanding bipolar junction transistors - Part 3
46 Audio Out by Jake Rothman. Designing Hi-Fi mini-monitor loudspeakers - Part 1
55 Practically Speaking. Three indispensable low-cost, low-tech tools
58 Make it with Micromite. Part 8: Dice Prediction game and Mini MKC Clock
66 Max’s Cool Beans. Flipping and flopping - metastability
76 Electronic Building Blocks. Three clocks