Reading time: 3 minute The presented speed variator, destined to supply the mini-drills for drilling or milling the wiring, offers a wide adjustment range and a high torque at the motor shaft. The assembly is simple to do, the article presenting detailed indications for operation and assembly.
Reading time: 5 minute Among the main topics presented in this issue, we list: Battery monitors; MC1496 integrated circuit; 2-zone alarm and / or fire alarm control panel; Voltage inverter - 24Vdc / 220Vac, 50 / 60Hz, 350W; Electronic timer with "start" and "stop" commands; Preamplifier - input trainer for frequency meters; Top 209/210 - TOPSwitch Family - Electronic MOS-FET switch with PWM control.
Reading time: 4 minute Among the main topics presented in this issue, we list: Detector of electrical cables mounted in the wall; Dynamic noise reducer; 13.8V / 3A source with backup battery; Intercom system for 12 stations; Inflatable barrier; AC voltage regulator with PIC16F84;
Reading time: 3 minute Among the main topics discussed in this issue, we list: PC - Parallel port; 80W amplifier; 4-channel remote control station; Multifunctional stable / monostable; Dynamic lights software; Stabilized source 5V / 3A; Portable calibrator for unified signal;
Reading time: 3 minute Among the main topics presented, we list: Stereo amplifier 2x30W; Checking DTA / DTC transistors; Microphone preamplifier; Prescaler 1Ghz; FI amplifier; 12V / 5A stabilized source; SMD technique;