General Electronics Technical Discussion

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Question on AC grounding - found an old device that has me confused by EasyGoing1 Started by EasyGoing1, 02-14-2021, 06:17 AM	32 responses 3,412 views 0 reactions	Last Post by stj 03-08-2021, 07:15 PM
Need help to identify "7014x" SOIC-8 LED driver by ngth82 Started by ngth82, 01-18-2020, 10:24 AM	13 responses 8,484 views 0 reactions	Last Post by xeos 03-07-2021, 07:51 PM
Can someone help me with this small circuit. Photo Attached by gersrt Started by gersrt, 03-07-2021, 08:05 AM	6 responses 1,189 views 0 reactions	Last Post by stj 03-07-2021, 12:21 PM
Mains isolating transformer advice please by zen Started by zen, 03-04-2021, 03:38 AM	13 responses 1,951 views 0 reactions	Last Post by zen 03-06-2021, 07:55 AM
Sense Adjustable Switching Power Supply ReCapped finished by sam_sam_sam Started by sam_sam_sam, 11-20-2020, 09:50 AM	7 responses 1,855 views 0 reactions	Last Post by sam_sam_sam 03-04-2021, 08:17 PM
Drilled motherboards by Askic Started by Askic, 02-23-2021, 12:38 AM	14 responses 2,094 views 0 reactions	Last Post by eccerr0r 03-04-2021, 12:39 PM
Another Dead CFL...that seemed to have lasted. by eccerr0r Started by eccerr0r, 02-26-2021, 08:10 PM	13 responses 1,586 views 0 reactions	Last Post by RJARRRPCGP 03-03-2021, 11:14 PM
How to read PCB symbol for 6 pin push-pull switch? by LearningToRepair Started by LearningToRepair, 02-24-2021, 04:18 PM	8 responses 1,600 views 0 reactions	Last Post by LearningToRepair 03-01-2021, 10:38 AM
I am in need of a 80 buck converter that is adjustable rated 4 amps or better by sam_sam_sam Started by sam_sam_sam, 02-26-2021, 05:26 PM	13 responses 3,531 views 0 reactions	Last Post by budm 03-01-2021, 12:29 AM
Whats this ripple? by EasyGoing1 Started by EasyGoing1, 02-19-2021, 06:36 PM	12 responses 1,942 views 0 reactions	Last Post by EasyGoing1 02-27-2021, 05:42 AM
Help substituting avalanche diode by Bibdid Started by Bibdid, 02-20-2021, 09:42 AM	16 responses 2,112 views 0 reactions	Last Post by redwire 02-26-2021, 11:03 PM
Switch selection by notallbad Started by notallbad, 02-24-2021, 04:59 AM	5 responses 1,176 views 0 reactions	Last Post by notallbad 02-25-2021, 01:05 PM
120 volt ( AC LED Clip-on Lamp ) 48 volt LED module Hack by sam_sam_sam Started by sam_sam_sam, 05-12-2018, 06:00 PM	22 responses 4,193 views 0 reactions	Last Post by sam_sam_sam 02-24-2021, 06:05 PM
RAB Lighting 30 and 48 White LED 9-12VDC Blinding Light Bars—> Very nice light bar by sam_sam_sam Started by sam_sam_sam, 02-11-2021, 10:03 AM	4 responses 1,241 views 0 reactions	Last Post by sam_sam_sam 02-24-2021, 04:55 PM
Recover defective smartphone data by SRO2 Started by SRO2, 02-23-2021, 02:41 AM	5 responses 1,226 views 0 reactions	Last Post by SRO2 02-24-2021, 03:19 AM
Testing for short circuit in diode mode by Askic Started by Askic, 02-21-2021, 12:05 PM	7 responses 3,795 views 0 reactions	Last Post by Askic 02-24-2021, 12:26 AM
How could I find a FET with specific specs? by EasyGoing1 Started by EasyGoing1, 01-21-2021, 08:28 PM	87 responses 7,789 views 0 reactions	Last Post by EasyGoing1 02-21-2021, 02:41 AM
Help Identify this Fuse by bohaboha Started by bohaboha, 02-19-2021, 07:07 PM	11 responses 1,380 views 0 reactions	Last Post by bohaboha 02-20-2021, 04:44 PM
Please comment on this modifying a ATX switching power supply is this a good idea by sam_sam_sam Started by sam_sam_sam, 02-01-2021, 06:16 PM	27 responses 3,765 views 0 reactions	Last Post by sam_sam_sam 02-20-2021, 04:38 PM
Valliant boiler board by _ASH_ Started by _ASH_, 02-15-2021, 02:25 AM	18 responses 1,688 views 0 reactions	Last Post by redwire 02-16-2021, 01:44 PM
SPDIF Coaxial Output & Toslink Input Clarification by TrblShtr Started by TrblShtr, 02-16-2021, 04:29 AM	2 responses 903 views 0 reactions	Last Post by TrblShtr 02-16-2021, 11:19 AM
General question about oscilliscopes by EasyGoing1 Started by EasyGoing1, 02-13-2021, 06:21 PM	12 responses 1,872 views 0 reactions	Last Post by Per Hansson 02-15-2021, 01:48 PM
Magneto-resistor Digital Output Potentiometer by debugtimog Started by debugtimog, 02-07-2021, 02:57 AM	9 responses 2,520 views 0 reactions	Last Post by redwire 02-13-2021, 03:07 PM
Marks on the PCB by Askic Started by Askic, 02-12-2021, 02:41 AM	3 responses 990 views 0 reactions	Last Post by Askic 02-12-2021, 07:01 AM
Need help diy a power bank by mikey5791 Started by mikey5791, 02-06-2021, 08:11 PM	3 responses 1,119 views 0 reactions	Last Post by mikey5791 02-08-2021, 10:05 PM
Does anyone have experience with this ic chip silicon touch PS223 by sam_sam_sam Started by sam_sam_sam, 02-08-2021, 12:42 PM	6 responses 1,786 views 0 reactions	Last Post by redwire 02-08-2021, 05:40 PM
UPS and inverter questions by andrew77 Started by andrew77, 01-15-2008, 09:36 PM	138 responses 34,676 views 0 reactions	Last Post by BurnInMyLight 02-07-2021, 05:29 PM
Battery Charging Peugot Boxer by barry wilkins Started by barry wilkins, 01-31-2021, 12:20 PM	6 responses 1,296 views 0 reactions	Last Post by barry wilkins 02-07-2021, 06:17 AM
Nicd battery Ah calculation by caphair Started by caphair, 01-29-2021, 07:51 AM	25 responses 3,254 views 0 reactions	Last Post by eccerr0r 02-05-2021, 05:20 PM
could anybody identify this chip? by liamObsolete Started by liamObsolete, 02-04-2021, 04:21 AM	3 responses 1,343 views 0 reactions	Last Post by liamObsolete 02-05-2021, 03:33 PM
What is that guys? Any idea? by spiros.p Started by spiros.p, 02-05-2021, 06:58 AM	2 responses 1,057 views 0 reactions	Last Post by spiros.p 02-05-2021, 09:40 AM
Aneng dt 9205a dvm by barry wilkins Started by barry wilkins, 01-31-2021, 11:59 AM	8 responses 1,392 views 0 reactions	Last Post by stj 02-03-2021, 03:44 PM
Repairing cheap chinese Led bulbs by blero Started by blero, 01-31-2021, 07:06 PM	17 responses 1,972 views 0 reactions	Last Post by RJARRRPCGP 02-03-2021, 03:11 AM
Ender 3D Printer but I am having problems with software help need by sam_sam_sam Started by sam_sam_sam, 04-10-2020, 10:23 PM	37 responses 5,543 views 0 reactions	Last Post by eccerr0r 02-02-2021, 10:06 PM
BGA Pcb cure/repair bga Layout print by shahnld Started by shahnld, 02-02-2021, 05:38 AM	0 responses 885 views 0 reactions	Last Post by shahnld 02-02-2021, 05:38 AM
Has anyone used this product before / is this real or BS claims by sam_sam_sam Started by sam_sam_sam, 01-30-2021, 01:15 PM	7 responses 1,461 views 0 reactions	Last Post by RJARRRPCGP 01-30-2021, 09:05 PM
Can I replace this SMD Package Capacitor with this?? by gersrt Started by gersrt, 01-28-2021, 05:24 PM	1 response 1,152 views 0 reactions	Last Post by stj 01-29-2021, 04:11 AM
230 VAC applied to 24VAC stepper motor with control board by electroBriedis Started by electroBriedis, 01-28-2021, 08:43 AM	2 responses 953 views 0 reactions	Last Post by sam_sam_sam 01-28-2021, 11:53 AM
How is called that compound that glues components on the PCB? by buchman Started by buchman, 01-14-2021, 07:33 AM	13 responses 2,272 views 0 reactions	Last Post by EasyGoing1 01-27-2021, 01:39 PM
DVM circuits by barry wilkins Started by barry wilkins, 01-20-2021, 01:27 PM	8 responses 1,570 views 0 reactions	Last Post by barry wilkins 01-27-2021, 09:35 AM

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