User John Am - Electrical Engineering Stack Exchange

John Am

Member for 6 years, 9 months
Last seen this week

Athens, Greece

30 Questions

Score Activity Newest Views

11 votes

3 answers

3k views

Why is it that "a single supply voltage is seldom used for audio mixers"?

circuit-design

asked Aug 30, 2017 at 11:27

6 votes

1 answer

753 views

Why my two coils don't repel each other?

electromagnetism coil

asked Aug 6, 2017 at 10:59

4 votes

4 answers

3k views

Can I measure voltage and current at the same time by using two multimeters?

voltage current

asked Jul 22, 2016 at 23:29

3 votes

1 answer

502 views

How to connect a diy audio signal to my "expensive" audio interface

power microphone reference line

asked Jun 27, 2017 at 17:23

3 votes

1 answer

755 views

Do SOIC op-amps packages behave differently from DIP?

dip soic

asked Jan 11, 2019 at 12:02

2 votes

4 answers

737 views

How to drive a cd4051 analog mux with buttons as channel selector?

multiplexer

asked Feb 13, 2018 at 18:36

2 votes

3 answers

4k views

Can I make a VCO full audio range with only one capacitor?

low-voltage vco

asked Apr 12, 2017 at 22:10

1 vote

2 answers

5k views

To share or not, grounds of two power supplies

ground

asked Jul 2, 2016 at 23:03

1 vote

1 answer

110 views

How a signal is transfered with only one connection in a simple circuit [closed]

circuit-analysis signal

asked Jul 14, 2016 at 19:01

1 vote

1 answer

6k views

What the symbol || means in electronics

circuit-design

asked Aug 30, 2017 at 10:11

1 vote

1 answer

639 views

MAX471 current sensor minimum current measurement

current-measurement

asked Apr 25, 2017 at 0:40

1 vote

5 answers

2k views

How to improve resolution and presicion of sensor reading?

voltage-measurement sensing

asked Jun 12, 2017 at 9:09

1 vote

3 answers

2k views

3mm different color LED resistances for bright light

led resistors

asked Aug 9, 2018 at 19:07

1 vote

3 answers

274 views

How to estimate current consumption by ICs

arduino current

asked Apr 9, 2017 at 10:20

0 votes

1 answer

81 views

Is it possible to mix split and single-supply circuit sections

circuit-design

asked Aug 27, 2019 at 16:38

0 votes

1 answer

63 views

Help me clarify max ratings and microcontroller pins tolerance

microcontroller power

asked Aug 28, 2019 at 21:52

0 votes

0 answers

38 views

DC coupled output question

dc

asked Jul 1, 2020 at 12:00

0 votes

1 answer

308 views

Is this behaviour of op-amp buffers normal? [duplicate]

voltage-divider buffer

asked Oct 9, 2021 at 19:02

0 votes

0 answers

117 views

Why this sample and hold circuit does not hold right

sample-and-hold

asked Nov 8, 2021 at 18:32

0 votes

0 answers

50 views

What safety class are these OEM 650nm 5mW laser diodes?

laser-diode

asked Dec 8, 2021 at 19:48

0 votes

4 answers

1k views

12 potentiometers with multiplexer

arduino potentiometer

asked Jun 23, 2017 at 12:13

0 votes

1 answer

339 views

Can I make a 20-bit ADC if I combine two 10-bit ADC's? [duplicate]

adc

asked May 8, 2017 at 22:45

0 votes

1 answer

387 views

Daisy-chain SPI modules current consideration

arduino current

asked May 19, 2017 at 12:58

0 votes

1 answer

199 views

Coil trembling/shaking with IRF520-520N MOSFET

mosfet

asked Jul 31, 2017 at 20:40

0 votes

2 answers

266 views

Some questions about current and reading electrical characteristics from a datasheet

current

asked Jul 5, 2016 at 18:23

0 votes

3 answers

2k views

Can a multimeter measuring current damage low voltage devices?

current-measurement multimeter

asked Apr 13, 2017 at 19:14

0 votes

1 answer

1k views

Is the self-powered USB hub powering my devices?

power-supply power usb-hub

asked Aug 12, 2016 at 11:28

0 votes

1 answer

83 views

Some more info about voltage/current electricity safety

safety

asked Feb 13, 2017 at 11:59

-1 votes

1 answer

61 views

Does controlling 2 or more motors needs a regulator?

motor l293d

asked Jul 1, 2016 at 19:52

-1 votes

3 answers

371 views

Measuring a 9volt battery with a D.Multimeter

batteries multimeter

asked Nov 8, 2017 at 11:22