Curd's user avatar
Curd's user avatar
Curd's user avatar
Curd
  • Member for 12 years
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41 votes
Accepted

What are the 'knuckles' on through-hole LEDs and photodiodes for?

39 votes

Why is a current signal preferred to a voltage signal for long analog transmission?

37 votes
Accepted

What is smallest addressable value in an octal number called?

29 votes

Can anyone tell me what is the purpose of diodes at the output of a chip?

26 votes
Accepted

Why is 50 Ω often chosen as the input impedance of antennas, whereas the free space impedance is 377 Ω?

24 votes
Accepted

Why does this isolation transformer have another transformer in it?

22 votes
Accepted

LED bulb still emits light when turned off

22 votes
Accepted

Avr-gcc using repeated addition instead of MULU instructions

20 votes
Accepted

OR gate vs. connecting two wires?

18 votes
Accepted

Why doesn't the compiler use directly LSR

17 votes

Why does a body submerged in a more conductive fluid still conduct current?

17 votes
Accepted

Do we need a resistor to discharge capacitor of MOSFETs while connected to MCU?

15 votes

Level Shifting 1.8V to 5V with N-channel FET

13 votes

Why does the voltage of the photodiode "bounce"?

12 votes

Can we tell which way AC power is going through a cable without cutting the cable?

11 votes

How can I 'stretch' a signal in time using analog components?

11 votes

"A zener with series diode"?

11 votes

How to make IR proximity detector immune to the daylight?

11 votes

My "audio oscilloscope" can't measure static/constant voltages but only changes

10 votes

4 MBit != 512 kB?

10 votes
Accepted

having distorted image in VGA with FPGA board

10 votes

Why are ALUs still serial?

10 votes

Infinite thermal current noise in a wire?

10 votes

Clamping diodes

9 votes
Accepted

Can a non-invasive AC current sensor measure DC current?

9 votes

Is it possible to transmit square waves EM signal through air?

9 votes

Why is it so expensive to produce cameras for non visible light?

9 votes
Accepted

Implementation of a NOT gate with two transistors - Why not one?

9 votes

Finding equivalent resistance?

9 votes
Accepted

Measuring extremely high impedance, extremely high voltage sources

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