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calcium3000
  • Member for 7 years, 9 months
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13 votes
4 answers
5k views

How can I cover PCB burn marks to identify burns later?

10 votes
1 answer
1k views

'Pick and place' feature in connectors

9 votes
3 answers
2k views

Traces in connector's solder keep out area

8 votes
1 answer
1k views

Parallel RC filter on SCR gate

7 votes
2 answers
2k views

Recommendation for series protection resistors on CAN bus?

6 votes
5 answers
1k views

Diminished data rate with logic output optoisolator

5 votes
2 answers
3k views

KiCad: PCB to footprint?

4 votes
2 answers
445 views

SPDT relay as SPST: why tie common to NC?

4 votes
1 answer
2k views

Watt-squared-seconds: unit of safe operating area?

4 votes
2 answers
310 views

Implications of routing same signal on top and bottom of PCB?

4 votes
2 answers
2k views

Device/circuit for high current, short pulse discharge?

3 votes
1 answer
833 views

Handling high pulse current through relay contacts

3 votes
1 answer
4k views

Purpose of anti-parallel diodes in isolated gate driving circuit?

3 votes
2 answers
361 views

High voltage limiter with discrete components

3 votes
2 answers
773 views

Extra pins on MIDI connector?

3 votes
1 answer
2k views

Best practice for ICT test point locations

2 votes
1 answer
166 views

Connecting phototriac substrate to adjacent pins

2 votes
1 answer
4k views

Bipolar constant current source circuit

2 votes
1 answer
380 views

Why does my HV monitor circuit (sometimes) fry components?

2 votes
3 answers
308 views

Identifying FR-4 and G-10

2 votes
1 answer
75 views

What kind of PMIC is this?

2 votes
1 answer
2k views

Driving compact UV lamp with DC

2 votes
2 answers
327 views

How to connect power phototriac's gate pin?

1 vote
2 answers
763 views

CAN transceiver Vref connection

1 vote
3 answers
201 views

Do unused relay pins help with heat dissipation?

1 vote
2 answers
2k views

Controlling 24-bit parallel RGB LCD with 16 bits

1 vote
2 answers
638 views

Audio attenuator has audible pops

1 vote
1 answer
5k views

Flux protection vs. sealed relay enclosures

1 vote
1 answer
502 views

LTspice XVII: Subcircuit pin names in Operating Point analysis

1 vote
1 answer
354 views

SPI not working on ATtiny441