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Capacitor discharge through optocoupler

General Electronics Chat 3 days ago at 04:23 AM

Last message by franck102 on April 9, 2020 at 07:14 AM

10 Replies
194 Views
Add a work light to powertools (Powered Screwdriver)

Technical Repair One week ago at 02:46 PM

Last message by Dodgydave on April 8, 2020 at 04:53 AM

24 Replies
235 Views
Constant Voltage LED Driver Correct Usage Help

General Electronics Chat 9 months ago at 04:46 PM

Last message by Tonyr1084 on April 2, 2020 at 11:20 AM

5 Replies
179 Views
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RSS - add an image link

Programming & Languages One week ago at 05:45 AM

Last message by Vincent_INSA on April 2, 2020 at 05:45 AM

0 Replies
35 Views
XL6005 understanding the datasheet

General Electronics Chat One week ago at 03:54 AM

Last message by Audioguru again on April 1, 2020 at 05:18 PM

15 Replies
408 Views
Understanding LED Arrays and R(D) Calc

General Electronics Chat 2 weeks ago at 12:31 PM

Last message by Reloadron on March 28, 2020 at 04:07 PM

13 Replies
283 Views
Can anyone identity this bulb??

General Electronics Chat 2 weeks ago at 06:33 PM

Last message by Tonyr1084 on March 24, 2020 at 06:15 AM

2 Replies
199 Views
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Electronics rookie trying to convert broken LED display into skylight

General Electronics Chat 4 weeks ago at 06:38 PM

Last message by psamaac on March 13, 2020 at 02:46 AM

8 Replies
155 Views
USB Lighting

General Electronics Chat 4 weeks ago at 03:21 PM

Last message by rickbadley on March 12, 2020 at 04:33 PM

8 Replies
78 Views
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Help replacing LED on PCB

General Electronics Chat One month ago at 12:31 PM

Last message by MisterBill2 on March 6, 2020 at 07:20 PM

19 Replies
267 Views
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Need Help with a Slightly Different LED Flasher Circuit - Novice Here!

General Electronics Chat About 5 months ago at 08:17 PM

Last message by ninjagrips on February 29, 2020 at 10:25 PM

70 Replies
1740 Views
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Need help powering LED

General Electronics Chat One month ago at 01:29 PM

Last message by Parmjit_sparky_singh on February 29, 2020 at 07:57 PM

4 Replies
148 Views
DIY LED Lamp with mains dimming

Power Electronics About 2 months ago at 09:39 AM

Last message by DickCappels on February 14, 2020 at 10:18 AM

2 Replies
126 Views
Novice: Aquarium Lighting using 25 3.6V/700mA LEDS to a 12V adaptor

General Electronics Chat 2 years ago at 10:52 AM

Last message by Audioguru again on February 13, 2020 at 07:45 AM

10 Replies
595 Views
reducing DC voltage in a circuit?

Technical Repair 2 months ago at 12:19 AM

Last message by jzeds1491 on February 9, 2020 at 06:08 AM

19 Replies
290 Views
Need help with complex LED circuit

General Electronics Chat 2 months ago at 09:17 AM

Last message by dl324 on February 6, 2020 at 09:31 AM

2 Replies
88 Views
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Quirky idea for stage lighting

General Electronics Chat 2 months ago at 01:52 PM

Last message by MisterBill2 on February 5, 2020 at 08:24 AM

21 Replies
294 Views
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LED lamp - connecting leds in parallel

General Electronics Chat 2 months ago at 06:25 AM

Last message by plumbum_by on January 22, 2020 at 12:08 PM

10 Replies
180 Views
Detection of low dc voltage to power a led

General Electronics Chat About 3 months ago at 10:47 PM

Last message by RIKRIK on January 16, 2020 at 06:46 PM

13 Replies
301 Views
Dual transistor issue with ESP32

General Electronics Chat About 3 months ago at 12:51 PM

Last message by Reloadron on January 13, 2020 at 05:08 PM

6 Replies
160 Views