User Bradman175

6 votes

How do I describe this circuit?

answered Sep 14, 2016 at 0:41

4 votes

How to distinguish PNP and NPN transistors?

answered Apr 17, 2016 at 13:34

4 votes

Accepted

What Electronic Component Marking On A Circuit Board Is Designated For BF?

answered May 13, 2016 at 3:41

4 votes

Master switch to turn on and off independent lights

answered Mar 13, 2017 at 22:53

4 votes

Accepted

NPN low transistor voltage in emitter despite high voltage collector

answered Jul 30, 2017 at 14:49

3 votes

Accepted

Arduino water pump with relay not working

answered May 22, 2017 at 14:42

3 votes

Circuit changing the color of an led with a button?

answered Jul 25, 2017 at 1:20

3 votes

hfe classifications in data sheets

answered Sep 10, 2016 at 3:02

2 votes

Help with fixing LED night light that won't turn off

answered Feb 5, 2017 at 13:20

2 votes

Accepted

IC identification

answered Feb 10, 2017 at 13:14

2 votes

Help with building a row of vintage lights

answered Mar 12, 2017 at 7:57

2 votes

Accepted

Is it 'safe' to use 200ohm resistor to reduce 9v to 5v

answered Apr 25, 2017 at 23:42

2 votes

Using as little pins as possible for multiple buttons

answered Jul 23, 2016 at 11:30

2 votes

Light an LED when load is in circuit

answered May 1, 2016 at 11:29

2 votes

Accepted

Maintaining voltage at 5V, but voltage must be able to change

answered Aug 12, 2016 at 14:14

1 vote

Accepted

Laser diode driven by a voltage source seems OK

answered Sep 10, 2016 at 2:10

1 vote

Capacitors and simple circuit understanding

answered Aug 6, 2016 at 10:36

1 vote

How to search for a component?

answered Aug 7, 2016 at 11:08

1 vote

Drive a common anode bi color LED using single microcontroller pin

answered Jan 2, 2017 at 3:34

1 vote

What is the least number of 8 Ω resistors you can arrange to have a total resistance of 5 Ω and how do you do it?

answered Jan 6, 2017 at 7:42

1 vote

7 segment LED display multiplexing for 9 digits

answered Jan 25, 2017 at 11:56

1 vote

Use transistors for controlling two LEDs

answered May 16, 2016 at 0:16

1 vote

Simple way to generate a two-level pulse?

answered Jun 17, 2016 at 14:58

1 vote

QRE1113 breakout with IR LED control

answered Jun 20, 2016 at 0:42

1 vote

Wiring a 5 Pin LED Switch

answered Jun 22, 2016 at 1:27

1 vote

Voltage measurement circuit

answered Jul 11, 2016 at 22:39

1 vote

Display Double Digit Numbers on 2 seven segment displays

answered Apr 26, 2016 at 14:45

1 vote

Accepted

Not Gate switching

answered Apr 26, 2016 at 16:33

1 vote

Can my DIY Arduino be powered with 12V battery via lm2576 switching regulator?

answered Apr 11, 2016 at 6:10

1 vote

square 3 bit input using two 3 bit adders and logic gates

answered Apr 13, 2016 at 9:33

Stack Exchange Network

54 Answers

How do I describe this circuit?

How to distinguish PNP and NPN transistors?

What Electronic Component Marking On A Circuit Board Is Designated For BF?

Master switch to turn on and off independent lights

NPN low transistor voltage in emitter despite high voltage collector

Arduino water pump with relay not working

Circuit changing the color of an led with a button?

hfe classifications in data sheets

Help with fixing LED night light that won't turn off

IC identification

Help with building a row of vintage lights

Is it 'safe' to use 200ohm resistor to reduce 9v to 5v

Using as little pins as possible for multiple buttons

Light an LED when load is in circuit

Maintaining voltage at 5V, but voltage must be able to change

Laser diode driven by a voltage source seems OK

Capacitors and simple circuit understanding

How to search for a component?

Drive a common anode bi color LED using single microcontroller pin

What is the least number of 8 Ω resistors you can arrange to have a total resistance of 5 Ω and how do you do it?

7 segment LED display multiplexing for 9 digits

Use transistors for controlling two LEDs

Simple way to generate a two-level pulse?

QRE1113 breakout with IR LED control

Wiring a 5 Pin LED Switch

Voltage measurement circuit

Display Double Digit Numbers on 2 seven segment displays

Not Gate switching

Can my DIY Arduino be powered with 12V battery via lm2576 switching regulator?

square 3 bit input using two 3 bit adders and logic gates