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イチケンから皆様へご報告があります

イチケンから皆様へご報告があります

65,156 views

6 days ago

Why is a terminating resistor necessary? Explained using a printed circuit board and a wave machine.

Why is a terminating resistor necessary? Explained using a printed circuit board and a wave machine.

75,460 views

13 days ago

What is ESR of an electrolytic capacitor? ESR generates so much heat [Equivalent Series Resistance].

What is ESR of an electrolytic capacitor? ESR generates so much heat [Equivalent Series Resistance].

48,451 views

2 weeks ago

Xiaomi 14 Ultra Teardown.

Xiaomi 14 Ultra Teardown.

279,764 views

3 weeks ago

Modifying the Apple Magic Mouse 2 to be wirelessly powered.

Modifying the Apple Magic Mouse 2 to be wirelessly powered.

94,062 views

1 month ago

Uncovering the cause of a broken smart plug that repeatedly starts on and off! #SwitchbotPlugMini

Uncovering the cause of a broken smart plug that repeatedly starts on and off! #SwitchbotPlugMini

117,578 views

1 month ago

Using a PCBs as a heat sink

Using a PCBs as a heat sink

62,263 views

1 month ago

Can I solder with a soldering iron from a 100 yen store?

Can I solder with a soldering iron from a 100 yen store?

109,655 views

2 months ago

Do you see the difference? The result of using fake power semiconductors...

Do you see the difference? The result of using fake power semiconductors...

132,781 views

2 months ago

Good products found on AliExpress Part 3 [ Real 300mm semiconductor wafers ]

Good products found on AliExpress Part 3 [ Real 300mm semiconductor wafers ]

269,657 views

2 months ago

Which Ni-MH batteries last longer and are more economical? Verified with 17 brands of batteries!

Which Ni-MH batteries last longer and are more economical? Verified with 17 brands of batteries!

241,334 views

3 months ago

What's this? I bought the parts I see in the DigiKey ads.

What's this? I bought the parts I see in the DigiKey ads.

158,878 views

3 months ago

Is it worth JPY15,000 ? Raspberry Pi 5 Review

Is it worth JPY15,000 ? Raspberry Pi 5 Review

219,777 views

3 months ago

How well do simulation and actual circuits match? Check with experiments and PSpice.

How well do simulation and actual circuits match? Check with experiments and PSpice.

67,179 views

3 months ago

Verified the difference between a high-end tester (USD400.00) and a very cheap tester (USD20.00).

Verified the difference between a high-end tester (USD400.00) and a very cheap tester (USD20.00).

287,927 views

3 months ago

Try to make 100V from dry cell batteries using a voltage booster circuit.

Try to make 100V from dry cell batteries using a voltage booster circuit.

409,934 views

4 months ago

Raspi 5 Compatible? ROCK 5A/5B Single Board Computer Review

Raspi 5 Compatible? ROCK 5A/5B Single Board Computer Review

96,174 views

4 months ago

Comparison of famous charger makers. What's the difference? Same specs, different price.

Comparison of famous charger makers. What's the difference? Same specs, different price.

524,062 views

4 months ago

I have given a lecture on USB chargers using GaN.

I have given a lecture on USB chargers using GaN.

40,903 views

4 months ago

This is what happens when a lithium-ion battery is overcharged.

This is what happens when a lithium-ion battery is overcharged.

242,548 views

5 months ago

I made my own gamepad that is free from any "drift phenomenon" using Hall sensors

I made my own gamepad that is free from any "drift phenomenon" using Hall sensors

151,164 views

5 months ago

Teardown Japanese old power supply from KIKUSUI

Teardown Japanese old power supply from KIKUSUI

80,629 views

5 months ago

New PS5 slim Teardown and Comparison.

New PS5 slim Teardown and Comparison.

433,327 views

6 months ago

パワー半導体のから見たことのない足が生えているがこれは何?

パワー半導体のから見たことのない足が生えているがこれは何?

121,108 views

6 months ago

Build your own induction motor

Build your own induction motor

112,752 views

6 months ago

60年物のオイルコンデンサに有害物質が使われていることが判明しました｡【修理編】#ポリ塩化ビフェニル

60年物のオイルコンデンサに有害物質が使われていることが判明しました｡【修理編】#ポリ塩化ビフェニル

102,848 views

6 months ago

This USB soldering iron is better than it looks.

This USB soldering iron is better than it looks.

115,561 views

6 months ago

Explaining the principle of switched reluctance motors and making them

Explaining the principle of switched reluctance motors and making them

61,975 views

7 months ago

I made inverted pendulum with arduino but I found out it is very difficult

I made inverted pendulum with arduino but I found out it is very difficult

129,695 views

7 months ago

緊急告知! RIGOLオシロスコープの体験会をやります!

緊急告知! RIGOLオシロスコープの体験会をやります!

16,617 views

7 months ago

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