January 2013

3 Input Stereo Audio Switcher; Stereo Compressor; Low-Capacitance Adaptor for DMMs; Universal USB Data Logger (Part 2); Jump Start iPod speaker; Raspberry Pi keypad and LCD interface. More details...

 

 

April 2013

Softstarter; 6-Decade Resistance Substitution Box; Semtest (Part 3); Jump Start (12) Egg Timer; PIC n MIX; Circuit Surgery - op.amps; Net Work - wi-fi cards. More details...

 

July 2013

Softstarter for power tools; 6-Decade Capacitance Substitution Box; High-current adaptor for DMMs and 'scopes; High-power brushless motors from old CD/DVD drives; Jump Start (15): Temperature Alarm. More details...

 

October 2013

Teach-In 2014 - the Raspberry Pi (Part 1) LED Musicolour 16-channel LED string sound to light; High Temperature Thermometer/ Thermostat; Simple Chess Clock (Ingenuity Unlimited); More details...

February 2013

Semtest (Part 1); Hifi Stereo Crystal DAC upgrade; 10W LED Floodlight; Built-in speakers; Universal USB Data Logger (Part 3); Jump Start logic circuits; Raspberry Pi – developing software; PIC n MIX. More details...

 

May 2013

Electronic Stethoscope; PIC/AVR programming Adaptor Board (Part 1); Cheap, High-Current Bench Supply from a PC PSU; Raspberry Pi Multimedia hub; PIC n MIX. More details...

 

August 2013

Driveway Sentry buried induction loop alarm; VOX Voice operated switch; Milliohm Adaptor for DMMs; Four-channel amplifier on the cheap; History of high-reliability Computing (1); Net Work - Do Not Track surfing. More details...

 

November 2013

CLASSiC-D 250W Class D Amplifier (Part 1);

Teach-In 2014 - the Raspberry Pi (Part 2) LED Musicolour 16-channel LED string sound to light (Part 2); Mains Timer for extractor fans or lights; Cheap Variable Power Supply; More details...

March 2013

Lightning Detector;

Semtest (Part 2);

Digital Spirit Level;

Interplanetary Voice;

Jump Start –analogue circuitry; Raspberry Pi -  upgrades and software tips; PIC n MIX - increase speed and save power; Circuit Surgery - flip-flops. More details...

 

June 2013

Mix-It 4 channel audio mixer; PIC/AVR programming Adaptor Board (Part 2); Handy USB Breakout box; Converter for Neon Lamp experiments; Ingenuity Unlimited (Birdbox TV); PIC n MIX RTTC. More details...

 

September 2013

Digital Sound Effects Module (.wav/ Windows); USB Stereo Recording & Playback Interface - balanced mics/ Line; Minireg Voltage Regulator; vacuum pump from junk; Circuit Surgery - filters & freq. response. More details...

 

December 2013

CLASSiC-D 250W Class D Amplifier (Part 2); USB Multi Instrument Project (Six Instruments in One) Teach-In 2014 - the Raspberry Pi (Part 3); Virtis Technology Multi Instrument 3.2 Review. Circuit Surgery (Rotary Encoders Pt. 3) More details...