21:13

#312 How to burn MiniCore bootloader on atmega328P blank TQFP IC using Arduino Uno R3 as ICSP

06:59

#311 How to make a very basic Plastic (or Foam) Cutter using Hot Nichrome Wire and var PSU

01:42:56

#310 2N7002 mosfet as a presence sensor with buzzer, coil meter and LED p2 - making the board

41:53

#309 2N7002 mosfet as a presence sensor with buzzer, coil meter and LED p1 - design

01:09:20

#308 Mosfet ESD protection

39:10

#307 Diode Tester with Voltage Display

45:43

#306 Testing Transistors as Power Devices part4; 1Mosfet A09T (SMD) + ESD protection with 10R at 5W

22:11

#305 Testing Transistors as Power Devices part3; 1Mosfet IRFZ44N with 10R at 2.5W

10:51

#304 Amperage Spike or PSU Shortcircuit Pulse at 4A over my testing IRFZ44N mosfet

14:31

#303 Resistive Power Load Circuit p2

21:33

#302 Testing Transistors as Power Devices part2; 1 Mosfet IRFZ44N

39:42

#301 Testing Transistors as Power Devices part1; 3 BJT's BC548, BD681, 2N3773 and 1 IRFZ44N Mosfet

01:23:08

#300 Resistive Power Load Circuit p1

19:16

#299 Headphones interrupted cable repair

17:20

#298 TL494 (from Texas Instruments) PWM Basic Test Circuit + Soft Start

40:42

#297 LM393 comparator and NTC MF58 Thermistor cardboard circuit construction

20:11

#296 LM393 comparator and NTC MF58 Thermal Resistor (Thermistor) the shifting problem

08:33

#295 How a Bad Mosfet looks like when testing it ?

10:38

#294 PWM Generator - hacking it's LCD contrast towards 75º view angle

27:20

#293 still about Mosfets - miscellaneous tests

15:53

#292 IRFZ44N Mosfet; Power Test Driving #3; with excellent switching results

31:07

#291 IRFZ44N Mosfet; Power Test Driving #2; with partially good and final results

46:04

#290 IRFZ44N Mosfet; Power Test Driving #1; failed from power supply complications

37:58

#289 Making a basic power supply from an old isolation transformer with 10V & 5V in secondary.

15:01

#288 Bidirectional TVS Diode for EFT/ESD protection

51:54

#287 Demagnetizer

45:29

#286 Counter 0-9 with 4017 and 7414 _p2

01:00:23

#285 Counter 0-9 with 4017 and 7414 _p1

13:38

#284 3 Led Counter from discrete SMD components

04:40

#283 The Classic Bistable Flip Flop (FF) from discrete SMD components

51:55

#282 LED Chaser and LED Scanner with 4017

56:21

#281 my DT-182 DMM (Digital Multi Meter) Upgrade

13:48

#280 Power_p9- Big Heatsink + LM317 Voltage Regulator running at 4.8W

19:21

#279 Power_p8- Big Heatsink for BD681 at 20W

25:53

#278 Power_p7- naked in air LM317 Voltage Regulator Power Testing

31:07

#277 Power_p6- How bad is 2N3773 ? And some updates for my Variable Power Load cct.

11:57

#276 Power_p5-2N3773 with very modest heatsink and also modest wattage increase, up to 5W !

22:48

#275 Power_p4-Testing a High Power NPN Transistor 2N3773 140V16A150W

19:40

#274 Scroll with Tracking LEDs and 7474FF errors Electrostatic (Charge) or 50Hz _p2

09:53

#273 Scroll with Tracking LEDs and 7474FF (Capacitive?)_p1

17:55

#272 Power_p3-Overpowering a BC548 small power Transistor

29:36

#271 Power_p2-How to make a Medium Power Transistor BD681 work at 19W ?

30:21

#270 Power_p1-How to make a Medium Power Transistor BD681 work at 12W ?

33:19

#269 Persistent Memory p3 - the 1 bit module

17:40

#268 Persistent Memory p2 - test motor driver H-bridge made from a ULN2003 + 2 tr

22:00

#267 about Persistent or Non-Volatile Memory (non-Flash Memory) p1

40:24

#266 Auto-Blinking 0805 LED - used as a bistable FlipFlop (with transistor and opamp)

21:03

#265 LM358 opamp tester

17:20

#264 LM317 - Constant Current Regulator p1 @16-32VDC range + Super Power Leds

10:20

#263 Self-Flashing, Auto-Blinking 0805 LED v2 - with LM358 opamp and higher V output than before

12:44

#262 Self-Flashing, Auto-Blinking 0805 LED v1 - used as a cheap Clock source

40:50

#261 making a Debounce Button circuit with a tiny 74AHC1G14; Schmitt Trigger 7414 inverter gate

53:46

#260 LM317 Voltage Regulator - powering a 1.2V small motor

02:59

#259 RTC 32768Hz (32kHz) crystal oscillator p6 - a better circuit for 4060 and 4027

18:46

#258 CD4536 with a 32.768 kHz Xtal dividing down to 1Hz

02:22

#251(b) RTC 32768Hz (32kHz) crystal oscillator p3 - (fragment)

10:09

#257 FNIRSI 1014D - Catch & Freeze Single Signal Pulse using a Bouncing Button

34:36

#256 General discussion about serial&multiplex, MCU, Memory, programming, LCD driver HT1621, EEPROM

26:48

#255 3digit Multiplexed LCD - (Working) HT1621B LCD driver IC linked with Arduino + easy library

19:20

#254 My Counter - Upgraded With a Very Precise 1 second Clock module !