13:43

What's inside a tankless water heater

21:39

Tektronix TDS 744A teardown and repair 2

11:36

Tektronix TDS 744A teardown and repair

10:31

$3 aliexpress 65W charger

17:59

150W LED power supply teardown

09:32

Na-ion battery test (Seekwatt 3V 1300mAh 18650)

10:18

Fake OpAmps from eBay, how to test OpAmps

21:56

OpAmps explained + how to read their datasheets

21:17

Building a battery analyzer

09:18

Aranet radiation sensor - test and teardown

04:09

Dangerous USB chargers 19 (the eco and the ultrafast)

11:29

Another IMRC module repair - tricky this time

13:24

Fnirsi DPOX180H 2x180MHz handheld oscilloscope

19:43

Analog oscilloscope repair 4 - Finally working!

21:29

Dangerous USB chargers 18

08:47

555 Chip Explained - Bistable Circuit (1 & 2 button ON-OFF)

24:48

Breadmaker teardown and repair (Eta Siesta)

14:48

Battery fluorescent inverter + Royer oscillator explained

13:24

2x58W electronic fluorescent ballast teardown (with schematic)

16:57

555 Chip Explained - LED Blinker, Buzzer, Siren...

05:58

LG Chem battery pack degradation test

22:23

Dumpster Li-ion vacuum cleaner

05:31

Asynchronous motor as a generator?

09:04

Induction motors + strobe light RPM measurement

12:28

FNIRSI intelligent color screen multimeter DMT-99 (test and teardown)

09:33

Fixing a faulty Lenovo USB charger

26:24

1000V insulation tester (Ganz XS)

09:42

Wire resistance thermal drift, winding T calculated from R

22:11

Failed 24V 10A power supply repair

17:59

Retro emergency light (with schematic and waveforms)

23:35

Analog oscilloscope repair 3 - Tunnel diodes

28:20

30kg of a resistance meter!

15:40

A Microwave Oven Transformer, but switching!

21:34

Fluorescent lamps, electronic vs. glow starters

18:07

Dangerous USB chargers 17 (QC 3.0 with schematic)

14:14

Failed 12W LED analysis and schematic

29:34

Induction light - what's inside, schematic, experiments

11:58

Now some safer USB chargers

24:17

DIY solar thermometer - project box, prototyping boards, supercapacitors formed, temperature sensors

17:06

What's inside a traffic light (+repair)

19:46

Analog oscilloscope repair 2 - Capacitors, ESR, leakage current

34:17

Analog oscilloscope repair - tons of problems!

05:28

A very old hydro power plant

17:56

Fixing what somebody else failed to fix (the 2nd nixie multimeter)

07:05

How to make your own relay

16:48

Nixie multimeter repair (M1T-242)

08:39

Solar panel I-V curve tracing (the simple way)

18:36

Solar panels and supercapacitors (powering an LED thermometer)

09:23

Simple DIY curve tracer, Zener diode thermal drift

11:33

Zener diodes are not what you think

13:16

Power Factor Saver (energy saving box scam evolution)

16:53

Biasing amplifier transistors

24:56

Function generator repair (Hungarian TR-0458/B)

10:51

Old oscilloscope with unexpected internals

17:43

1960s electric clock repair (and battery clock evolution)

11:25

Topdon TC004 thermal camera

15:26

Dangerous USB chargers 16

09:38

FNIRSI intelligent soldering iron HS-01

09:48

Fixing the Roasted Test Load

12:35

Building a Test Load (4-30V 0-4A)