User Kuba hasn't forgotten Monica

43 votes

Do ‘wiperless’ potentiometers exist?

answered Mar 8, 2015 at 20:26

38 votes

Accepted

What are the little bits of metal that come out of light bulb filaments and why do they stick to only one terminal?

answered Apr 23, 2023 at 18:57

30 votes

Accepted

What is the purpose of the fenced-off area on this board?

answered Jan 25, 2021 at 14:46

27 votes

Why do people use MOSFETs instead of BJTs in PWM applications?

answered Mar 27, 2023 at 20:45

25 votes

What causes the trough of a sine wave to become sharp?

answered Apr 20, 2023 at 20:58

25 votes

Wiring a 240 V single phase cable to two 110 V outlets (120 deg apart)

answered Jul 22, 2022 at 2:56

25 votes

Accepted

How is USB 3.2 still serial when there are so many data cables?

answered Nov 28, 2022 at 19:37

23 votes

Using capacitors as a battery back-up

answered Apr 6, 2022 at 10:56

23 votes

Accepted

Why is a PCI card treated as two loads on the PCI bus?

answered Apr 9, 2022 at 19:15

22 votes

Can I stack optocouplers in series to make a higher specification part?

answered Feb 15 at 14:46

21 votes

A 200-mile-long neutral busbar doesn't sound real

answered Sep 21, 2022 at 21:57

19 votes

Wouldn't charging a lithium battery to 80% only defeat the purpose of putting the battery into longer use in the first place?

answered Jun 13, 2022 at 19:06

19 votes

Accepted

What does a function mean that doesn't have "void", "int", etc in front of it mean?

answered Jun 14, 2022 at 23:15

19 votes

Can solder on wireless device PCB be vaporized during electrical storm?

answered Feb 25 at 18:12

18 votes

LED dies under a 3.75V lithium-ion battery, but works fine with a 9V PP3

answered Oct 24, 2022 at 16:20

18 votes

Accepted

Is it a problem to use a capacitor at or near its rated DC voltage?

answered Jan 23, 2023 at 16:46

17 votes

Linear PSU design problem

answered Jan 3, 2023 at 19:30

17 votes

Accepted

Can an electric circuit do recursion?

answered Mar 9, 2015 at 13:26

17 votes

Accepted

Is there any advantage or disadvantage of using high value capacitor instead of high value resistor in filter?

answered Dec 21, 2021 at 14:47

17 votes

FFT is not showing noise

answered Aug 11, 2023 at 17:17

16 votes

With a transistor (as a switch), does the order of the parts matter?

answered Apr 14, 2022 at 23:20

15 votes

Why can't USB-C receivers be as small as their USB-A counterparts?

answered Apr 14, 2022 at 0:26

15 votes

KiCad error - parallel 7805 outputs

answered Jun 13, 2022 at 19:23

15 votes

Accepted

Is there a general rule to calculate heat dissipation of electronic equipment?

answered Sep 2, 2022 at 20:40

15 votes

Can I use a 250 nF instead of a 200 nF SMD ceramic capacitor?

answered Aug 29, 2022 at 21:24

15 votes

Ultra simple oven controlled resistor for analog temperature control

answered Aug 15, 2022 at 22:30

15 votes

Why aren't these instrumentation amps working for linearly driving a generic MOSFET?

answered Aug 21, 2022 at 23:46

15 votes

Design review request : First AC design - Is this dangerous?

answered Feb 7 at 16:01

14 votes

Is my PCB design good or really bad?

answered Feb 15 at 15:53

14 votes

What is the reasoning behind parallel memory pinouts?

answered Dec 30, 2023 at 16:56

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1,567 Answers

Do ‘wiperless’ potentiometers exist?

What are the little bits of metal that come out of light bulb filaments and why do they stick to only one terminal?

What is the purpose of the fenced-off area on this board?

Why do people use MOSFETs instead of BJTs in PWM applications?

What causes the trough of a sine wave to become sharp?

Wiring a 240 V single phase cable to two 110 V outlets (120 deg apart)

How is USB 3.2 still serial when there are so many data cables?

Using capacitors as a battery back-up

Why is a PCI card treated as two loads on the PCI bus?

Can I stack optocouplers in series to make a higher specification part?

A 200-mile-long neutral busbar doesn't sound real

Wouldn't charging a lithium battery to 80% only defeat the purpose of putting the battery into longer use in the first place?

What does a function mean that doesn't have "void", "int", etc in front of it mean?

Can solder on wireless device PCB be vaporized during electrical storm?

LED dies under a 3.75V lithium-ion battery, but works fine with a 9V PP3

Is it a problem to use a capacitor at or near its rated DC voltage?

Linear PSU design problem

Can an electric circuit do recursion?

Is there any advantage or disadvantage of using high value capacitor instead of high value resistor in filter?

FFT is not showing noise

With a transistor (as a switch), does the order of the parts matter?

Why can't USB-C receivers be as small as their USB-A counterparts?

KiCad error - parallel 7805 outputs

Is there a general rule to calculate heat dissipation of electronic equipment?

Can I use a 250 nF instead of a 200 nF SMD ceramic capacitor?

Ultra simple oven controlled resistor for analog temperature control

Why aren't these instrumentation amps working for linearly driving a generic MOSFET?

Design review request : First AC design - Is this dangerous?

Is my PCB design good or really bad?

What is the reasoning behind parallel memory pinouts?