Andy aka's user avatar
Andy aka's user avatar
Andy aka's user avatar
Andy aka
  • Member for 10 years, 11 months
  • Last seen this week
147 votes
Accepted

What is the reason that the value "47" is so popular in electrical engineering?

96 votes

Why do banana plugs need these holes?

94 votes
Accepted

Reasons not to use a 741 op-amp?

82 votes

Why is the Digital 0 not 0V in computer systems?

69 votes

Is there a technical reason why most touch screens use glass rather than plastic?

67 votes

Ceramic caps vs electrolytic. What are the tangible differences in use?

57 votes
Accepted

Is it ok to 'snake' the flow of my schematic?

56 votes
Accepted

Why is sine wave preferred over other waveforms?

55 votes
Accepted

Is ground connection in home electrical system really necessary?

53 votes

Moisture Trapped in IP66 Enclosure

52 votes

What is the purpose of the emitter resistor in a common emitter amplifier?

49 votes
Accepted

Two resistors in series

49 votes

How did old television screens with a light grey phosphor create the darker contrast parts of the display?

46 votes
Accepted

Optical audio transmitter can't handle speech

45 votes
Accepted

Why are there 3.15A fuses?

44 votes
Accepted

How to make a dummy load of 1000W - 2000W?

43 votes
Accepted

Why does 1/4 wavelength have a ground plane and 1/2 wavelength needs none?

43 votes

Why do transformers use so many turns?

43 votes
Accepted

RF Energy Harvesting

42 votes
Accepted

Where did the value of 0.1uF for bypass capacitors come from?

41 votes
Accepted

Why recommend tantalum over ceramic capacitor for voltage regulator?

40 votes

What does 232 signify in the RS232 standard?

39 votes
Accepted

Why is electricity consumption billed in watts and not amperes?

38 votes

What is a sine wave?

38 votes
Accepted

Why is there a difference between pad-to-trace and trace-to-trace clearance?

37 votes

How can a one million megohm resistor be useful?

37 votes
Accepted

Can people act like antennas?

37 votes
Accepted

What does a Bode plot represent and what is a pole and zero of a Bode plot?

36 votes
Accepted

How were four wires replaced with two wires in early telephones?

36 votes

How can I measure the RPM of a Frisbee?

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