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user1285419
  • Member for 11 years, 6 months
  • Last seen more than a month ago
6 votes
1 answer
427 views

about power supply of opertional amplifier

6 votes
1 answer
5k views

Is 555 timer good to generate 20MHz clock?

3 votes
2 answers
158 views

are amplifier and attentuator bascially of the similiar function?

3 votes
2 answers
340 views

Help with amplifier with feedback

2 votes
3 answers
4k views

Simplest circuit for making Christmas lights flash

2 votes
3 answers
831 views

about power, voltage and current

2 votes
2 answers
2k views

Why is there a power drop in a serial circuit, but not in a parallel circuit?

2 votes
2 answers
944 views

using a photoresistor as a control of speaker

1 vote
1 answer
102 views

about grounding on different circuit board

0 votes
2 answers
1k views

What is the output of a JFET op-amp?

0 votes
1 answer
5k views

Can I use MOSFET to output big current with small voltage?

0 votes
3 answers
2k views

Is it safe to use PC analog output card as current source?

0 votes
1 answer
220 views

Question about using power supply

0 votes
1 answer
2k views

how to drive peltier cooler pad at home?

0 votes
2 answers
220 views

how to measure the current from AC-DC supplier?

0 votes
1 answer
367 views

any way to boost data transmission in GPIB?

0 votes
3 answers
198 views

Looking for suggestion on microcontroller [closed]