Now viewing questions 1-25 of 319.
Critical resistance situation asked by ahmadsayed
0 answers · 4 comments
7 hours, 13 minutes ago
Flashing LEDs in series: SOLVED asked by moe24
1 answer · 8 comments
11 hours, 22 minutes ago
Please help me asked by abertugertem
1 answer · 0 comments
1 day, 19 hours ago
Converting 110-V 60 Hz - to 220-V 50 Hz. asked by Gershom
0 answers · 13 comments
4 days, 6 hours ago
measure a pico amper asked by plcs7
0 answers · 3 comments
October 04, 2018
Asking for help getting right components to use a wireless button to pick a solenoid. asked by Rvogan
0 answers · 3 comments
October 03, 2018
Awesome site, question about relays asked by Amool123
0 answers · 1 comment
October 02, 2018
Bought a home stereo system online for $20 asked by Philipsmmr
0 answers · 6 comments
September 29, 2018
12V Momentary Power Push Button Switch Aluminum Dome Latching asked by Azliza8676
1 answer · 10 comments
September 29, 2018
Power On Trigger for 3s, Power Off Trigger for 3s asked by gtxviper
0 answers · 1 comment
September 28, 2018
touch switch asked by susque
0 answers · 1 comment
September 28, 2018
Trigger a relay when a DC light bulb is screwed in asked by outcida
0 answers · 3 comments
September 27, 2018
12v Battery charging asked by Reodo
2 answers · 2 comments
September 27, 2018
Can I install circuit lab on my computer for offline use? asked by veritasomar
1 answer · 1 comment
September 23, 2018
Relay triggering circuits asked by Jammu
0 answers · 1 comment
September 23, 2018
3 Switches circuit asked by sinasina
1 answer · 4 comments
September 20, 2018
How do I wire a PKE antenna (inductive transmitter) ? asked by cnd
1 answer · 3 comments
September 20, 2018
In the circuit the resistor 9 ohms is cancelled? asked by chessy1991
0 answers · 6 comments
September 16, 2018
Sequential Logic asked by s3665153
0 answers · 5 comments
September 11, 2018
Murata CFWS455 Resin MoldedCeramic Filter SOLVED asked by VK7LAZ
2 answers · 4 comments
September 11, 2018
Diy transistor asked by deskely
0 answers · 5 comments
September 09, 2018
How can I test Amps? asked by jakehazelwood
3 answers · 13 comments
September 07, 2018
Led asked by momoygahi
0 answers · 2 comments
September 04, 2018
Measuring electromagnetic fields asked by karenl
1 answer · 4 comments
September 02, 2018
Lcd Tv screen asked by gab_catorce
1 answer · 2 comments
August 31, 2018
Go Ad-Free. Activate your CircuitLab membership. No more ads. Save unlimited circuits. Run unlimited simulations.

Search Questions & Answers


Ask a Question

Anyone can ask a question.

Did you already search (see above) to see if a similar question has already been answered? If you can't find the answer, you may ask a question.


About This Site

CircuitLab's Q&A site is a FREE questions and answers forum for electronics and electrical engineering students, hobbyists, and professionals.

We encourage you to use our built-in schematic & simulation software to add more detail to your questions and answers.

Acceptable Questions:

  • Concept or theory questions
  • Practical engineering questions
  • “Homework” questions
  • Software/hardware intersection
  • Best practices
  • Design choices & component selection
  • Troubleshooting

Unacceptable Questions:

  • Non-English language content
  • Non-question discussion
  • Non-electronics questions
  • Vendor-specific topics
  • Pure software questions
  • CircuitLab software support

Please respect that there are both seasoned experts and total newbies here: please be nice, be constructive, and be specific!

About CircuitLab

CircuitLab is an in-browser schematic capture and circuit simulation software tool to help you rapidly design and analyze analog and digital electronics systems.