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Kaelin Colclasure's user avatar
Kaelin Colclasure's user avatar
Kaelin Colclasure's user avatar
Kaelin Colclasure
  • Member for 13 years, 8 months
  • Last seen more than 9 years ago
35 votes
5 answers
184k views

Safe temperature for desoldering SMD components w/ hot-air rework gun?

30 votes
5 answers
11k views

How much power is really wasted by a wall wart?

24 votes
4 answers
20k views

Are there reasons *not* to have a copper-pour ground plane on a PCB?

24 votes
5 answers
38k views

When/why would you use a Zener diode as a flywheel diode (on the coil of a relay)?

19 votes
3 answers
27k views

Any native Mac OS X environments for getting started with VHDL / FPGAs?

14 votes
2 answers
38k views

Any drawbacks to "low temp" lead-free solder paste?

11 votes
2 answers
2k views

Will "hot plate" reflow soldering work without a solder resist coating?

9 votes
1 answer
2k views

Potential problems if I only ground one probe of my oscilloscope?

7 votes
1 answer
2k views

How can I use a generic doorknob as a capacitive touch sensor?

5 votes
2 answers
12k views

How do I tell if a transistor is bad?

4 votes
2 answers
561 views

Is there a relevant difference between these capacitors?

3 votes
2 answers
475 views

Identity of TI mystery chip: CM060B

3 votes
2 answers
4k views

Best practice to switch +V or GND connection?

3 votes
1 answer
705 views

How will the output of a 12V transformer wall wart differ from that of a 12V SMPS brick?

3 votes
1 answer
4k views

How do I invert the output of this current sensor using the other side of the LM358?

3 votes
3 answers
2k views

RFID reader for a keyless residential entry system?

3 votes
1 answer
657 views

How do I determine the electrical characteristics of a cheap kit motor?

2 votes
5 answers
469 views

Are the resistance values (R1 and R2) in this circuit reasonable?

2 votes
2 answers
256 views

Is there a hobbiest's source for Akros Silicon PoE evaluation boards?

2 votes
1 answer
874 views

ATMEGA328P: Can I re-use PB4(MISO) w/ a pull-up resistor w/o interfering w/ SPI?

2 votes
5 answers
436 views

Low power sensor heater circuit?

2 votes
1 answer
629 views

Spec'ing power supply to replace a battery pack in a DIY project?

2 votes
1 answer
9k views

What is this component (labelled L1)?

2 votes
3 answers
3k views

Is it always safe / reasonable to replace a power supply brick with one rated for more amps? [duplicate]

2 votes
1 answer
1k views

Does a photo-coupled SSR need a series resistor for the internal LED?

2 votes
1 answer
3k views

Eagle: How do I make a component from a board?

1 vote
2 answers
285 views

Source for a 6-pin DIL "stackable" header (for Arduino ICSP header)?

1 vote
1 answer
900 views

Routing the circuit for a snubber diode on a PCB?

1 vote
3 answers
778 views

Regulating a steam-powered model generator

1 vote
0 answers
559 views

What is this component on my dog's door opening collar?