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cd40106be based oscillators not oscillating unless holding potentiometer input terminal

General Electronics Chat 3 minutes ago at 03:06 PM

Last message by SamR 03:06 PM

7 Replies
4 Views
IRL540 --- PWM control by ESP32

Analog & Mixed-Signal Design About 5 minutes ago at 03:05 PM

Last message by Doceave 03:05 PM

0 Replies
0 Views
I can't control 3V DC motor with PN2222 transistor. Motor doesn't spin. Please help!!

Analog & Mixed-Signal Design 15 minutes ago at 02:54 PM

Last message by AlbertHall 02:54 PM

6 Replies
24 Views
D
 How often does SiglentNorthAmerica have sales?

General Electronics Chat 29 minutes ago at 02:40 PM

Last message by DarthVolta 02:40 PM

0 Replies
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S
 resistance of water

General Electronics Chat About 45 minutes ago at 02:25 PM

Last message by sycolax 02:25 PM

9 Replies
48519 Views
What is this black adhesive that connected a foil ribbon to the PCB, and how best to repair?

General Electronics Chat One hour ago at 02:01 PM

Last message by bobtiki 02:01 PM

4 Replies
43 Views
C
 Understanding differential amplifier design example from AoE

Homework Help One hour ago at 02:01 PM

Last message by cake4all 02:01 PM

5 Replies
100 Views
infrared-emitters-and-detectors as array

Homework Help One hour ago at 01:49 PM

Last message by Delta prime 01:49 PM

7 Replies
174 Views
P
 Boeing 737 MAX - software wouldn't fix faulty airframe

Software & IDEs One hour ago at 01:47 PM

Last message by prairiemystic 01:47 PM

328 Replies
7225 Views
Need help troubleshooting MC2100WAM motor controller

Technical Repair One hour ago at 01:36 PM

Last message by MaxHeadRoom 01:36 PM

14 Replies
132 Views
P
 Toyota Wiper Motor - Brushes assembly

General Electronics Chat One hour ago at 01:30 PM

Last message by prairiemystic 01:30 PM

3 Replies
60 Views
I fried a Raspberry Pis and I have no idea why. Please help me understand.

Microcontrollers About 2 hours ago at 01:12 PM

Last message by dl324 01:12 PM

24 Replies
267 Views
W
 Are resonant converters bi-directional?

Power Electronics 2 hours ago at 01:07 PM

Last message by WendellB 01:07 PM

1 Replies
60 Views
The Jokes thread

Off-Topic 2 hours ago at 01:04 PM

Last message by Delta prime 01:04 PM

4350 Replies
267557 Views
Enabling 555 timer after 10 second push button

Analog & Mixed-Signal Design 2 hours ago at 01:02 PM

Last message by crutschow 01:02 PM

23 Replies
252 Views
Transmission Line Matching Impedance From a digital point of view

General Electronics Chat 2 hours ago at 01:01 PM

Last message by Papabravo 01:01 PM

13 Replies
133 Views
Computing Input Impedance, Output Impedance And Voltage Gain

Analog & Mixed-Signal Design 2 hours ago at 01:01 PM

Last message by aac044210 01:01 PM

32 Replies
400 Views
And now for something weird...

Off-Topic 2 hours ago at 12:51 PM

Last message by nsaspook 12:51 PM

5777 Replies
167918 Views
Performance of stored PC SMPS for several years

Technical Repair 2 hours ago at 12:42 PM

Last message by roadey_carl 12:42 PM

4 Replies
88 Views
W
 Roland D-10 Synthesizer A section of 8 keys only work once when pressed

Technical Repair 2 hours ago at 12:27 PM

Last message by whathaveidonenow 12:27 PM

8 Replies
81 Views