user avatar
user avatar
user avatar
JYelton
  • Member for 11 years, 7 months
  • Last seen this week
  • Utah, United States
79 votes
7 answers
262k views

What is "forward" and "reverse" voltage when working with diodes?

40 votes
3 answers
69k views

What's a schematic (compared to other diagrams)?

39 votes
2 answers
6k views

Should I discard my inventory of old electrolytic capacitors?

37 votes
5 answers
109k views

What's the difference between a potentiometer and a rheostat?

36 votes
5 answers
38k views

What makes a pull-up/down resistor strong or weak?

34 votes
5 answers
75k views

What pad hole (drill) size is appropriate for a given through-hole lead diameter?

33 votes
3 answers
20k views

How to decide between a TVS or Zener diode for overvoltage protection?

32 votes
1 answer
1k views

Darlingtons, MOSFETS, and bipolar junctions

32 votes
2 answers
19k views

Why route air gaps for voltage isolation on PCBs?

27 votes
4 answers
32k views

Considerations in a bench/lab power supply?

24 votes
8 answers
30k views

Why are some AC outlets and plugs polarized?

23 votes
6 answers
23k views

Benchtop power supplies: linear vs switching? [closed]

23 votes
1 answer
31k views

What is the difference between "reverse stand off voltage" and "breakdown voltage" on a TVS?

21 votes
5 answers
32k views

What can reduce overshoot and ringing on a simple square wave pulse generator?

21 votes
6 answers
77k views

How does a fuse blow at its current rating, regardless of voltage?

18 votes
2 answers
17k views

Do "solid polymer" capacitors really have a longer lifespan than electrolytic?

18 votes
8 answers
5k views

Is a sine wave (or any signal) that has no zero crossing still considered AC?

17 votes
4 answers
2k views

Is there any benefit to using a voltage booster (such as Batteriser) on "dead" batteries?

17 votes
4 answers
57k views

How do I measure differential signals (like RS-485 or DMX) on an oscilloscope?

17 votes
3 answers
53k views

Why is mains power sometimes 110V and other times 120V?

16 votes
2 answers
2k views

Why would the VCC/GND pins of an ATtiny26 not be aligned?

15 votes
3 answers
20k views

What is the "ammo" packaging method when ordering through hole parts?

15 votes
2 answers
23k views

What values of resistor and capacitor to use for AVR reset pin isolation?

15 votes
3 answers
559 views

Why specify a maximum pulse width for reset pin?

13 votes
3 answers
15k views

How to determine type of through-hole resistor?

13 votes
3 answers
3k views

Must IO pins each have their own pull-up/down resistor?

13 votes
3 answers
9k views

What is the importance of memory depth when selecting a digital storage oscilloscope?

11 votes
4 answers
1k views

Why does my waveform start ahead of the trigger?

11 votes
3 answers
4k views

What is oscilloscope trigger "sensitivity"?

11 votes
2 answers
8k views

What is the recommended way to protect a circuit from non-transient overvoltage?