Electronics Questions & Answers last updated 3:02:21 AM PDT

Flashing LEDs in series: SOLVED	asked by moe24 1 answer · 8 comments October 15, 2018
Please help me	asked by abertugertem 1 answer · 0 comments October 13, 2018
Converting 110-V 60 Hz - to 220-V 50 Hz.	asked by Gershom 0 answers · 13 comments October 11, 2018
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
strange resistor	asked by boy2018 1 answer · 0 comments August 30, 2018

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!

New @ CircuitLab
Generalk saved circuit: "PROJECT SAMPLE Project 2"
smit24cr saved circuit: "Project 2: W/o bridge"
wangwg88 commented on question: "European device in USA" 15 hours ago
febb saved circuit: "Cuk Converter for portable radios"
tkhan1 saved circuit: "Milestone 2"
moustafaabada asked: "Design two-stage operational..."
nmlook asked: "European device in USA"
pennir02 commented on question: "thermal resistor - thermistor..."
Foxx replied to discussion: "Wire crossing"
Foxx commented on question: "Multimeter (ampermeter) failure"
Radionov commented on question: "Multimeter (ampermeter) failure"
Radionov asked: "Multimeter (ampermeter) failure"
Jiya asked: "EMG Open Circuit"
clartemis replied to discussion: "How can I switch off the grid?"
Foxx answered: "Shaded pole motor powering help"
mu34tant answered: "Finding resistance"
wangwg88 answered: "Clipping at high voltages only?"
Negativ3 answered: "How to delay a LED?? (On/Off)"
perhl started discussion: "IEC symbol for Inductor"
rdpoor started discussion: "Another vote for thermal modeling /..."
CircuitLab Blog: "Electronics Hobbyists and Tinkerers"
CircuitLab Blog: "Server Availability Improvements"