Forum: Troubleshooting Power Supplies and Power Supply Design
11-24-2020, 03:09 PM
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Replies: 9
Views: 598
Re: Does power supply have to have metal case?
What you hear about RF being injurious to humans is all nonsense by those who don't understand how it works anyway.
It won't do anything to humans unless it gives off an audible whine. Then it'll...
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Forum: Troubleshooting Game Consoles & Other Weird Devices
11-11-2020, 06:29 PM
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Replies: 28
Views: 1,451
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Forum: General Computer & Tech Discussion
10-28-2020, 03:47 PM
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Replies: 4
Views: 649
Re: Server emulation??
Welcome to not owning the copy of the games you have purchased
It could be anything as simple as a DNS redirect to your own server, to needing to be able to root the console and install your own...
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Forum: Troubleshooting Laptops, Portable, and Mobile Devices
09-17-2020, 11:54 AM
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Replies: 4
Views: 659
Re: SSD ( samsung ) locked
It a long shot, but try issuing a secure erase. Some SSDs will wipe the data and remove the password along with it
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Forum: Troubleshooting TVs and Video Sources
08-23-2020, 04:12 PM
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Replies: 100
Views: 123,231
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Forum: General Electronics Technical Discussion
04-29-2020, 09:08 PM
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Replies: 95
Views: 3,980
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Forum: General Electronics Technical Discussion
03-15-2020, 05:58 PM
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Replies: 95
Views: 3,980
Re: Sending PWM through a relay
I would think using an SSR to make the connection, pull in the mechanical contactor, then dropping out the SSR would still prevent the losses and save the life of the contactor. Inverse for...
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Forum: General Electronics Technical Discussion
03-15-2020, 09:25 AM
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Replies: 95
Views: 3,980
Re: Sending PWM through a relay
Much clearer!
Some more notes to make:
Contact "Bounce" will mess up anything that "tracks" the PWM signal. For a modulated load, such as a heating element, this is not a concern. Usually...
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Forum: General Electronics Technical Discussion
03-15-2020, 09:17 AM
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Replies: 95
Views: 3,980
Re: Sending PWM through a relay
Im not sure what you mean. Through the contacts or coil?
Through the contacts is fine. As a note, best practice would say to switch off at a zero crossing of the PWM circuit or AC line if you are...
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Forum: General Computer & Tech Discussion
03-04-2020, 01:02 PM
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Replies: 7
Views: 856
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Forum: BIOS Requests ONLY!
02-16-2020, 04:28 PM
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Replies: 14
Views: 773
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Forum: Troubleshooting Power Supplies and Power Supply Design
02-03-2020, 10:27 PM
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Replies: 14
Views: 1,317
Re: Neon light transformer identification
N...no. Its a choke, is all magnetic ballasts are. You can connect them directly across the line and they will sit there and pull 20w happily.
Once a tube is struck, its akin to a short circuit....
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Forum: General Computer & Tech Discussion
02-02-2020, 08:21 PM
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Replies: 64
Views: 7,001
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Forum: BIOS Requests ONLY!
01-28-2020, 06:14 PM
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Replies: 14
Views: 773
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Forum: BIOS Requests ONLY!
01-28-2020, 10:55 AM
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Replies: 14
Views: 773
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Forum: BIOS Requests ONLY!
01-27-2020, 08:16 PM
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Replies: 14
Views: 773
Re: Lenovo P52 BIOS needed
https://mega.nz/#!I8snwYaZ!e-kttFLMsjnnRBYp06y8aF3GADOYbgIL3Br9iyyFLqA
P52-MMX25L25.bin is the main BIOS chip
P52_W25Q80.bin is the other small flash chip. Was connected upside down at...
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Forum: BIOS Requests ONLY!
01-23-2020, 07:48 PM
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Replies: 14
Views: 773
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Forum: BIOS Requests ONLY!
01-22-2020, 02:49 PM
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Replies: 14
Views: 773
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Forum: BIOS Requests ONLY!
01-22-2020, 11:51 AM
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Replies: 14
Views: 773
Lenovo P52 BIOS needed
Hello
I am in need of a BIOS dump for a Lenovo P52 with Xeon CPU and NVIDIA graphics
The model Number is 20M9-CTO1WW
The computer was force shutdown while an X86_64 port of Android was booting,...
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Forum: General Computer & Tech Discussion
01-02-2020, 07:24 PM
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Replies: 57
Views: 2,934
Re: The 2020 Operating System Thread
Lotsa Unix and clones this year.
Linux on my Pi based NAS
AT&T System Five on a very old machine
9Front on a PIII machine
Windows 10 Pro for Workstations and Linux on my Xeon machine.....
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Forum: Troubleshooting Computer Displays
12-20-2019, 07:47 PM
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Replies: 3
Views: 772
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Forum: General Computer & Tech Discussion
11-07-2019, 12:22 AM
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Replies: 38
Views: 5,334
Re: done with m$ windho's
Ahhh, yes. Finding a thread from years ago when you were young and (really) stupid dug up makes you realize just how bad you were.... I wonder if i grew more mature, or just more cynical? Maybe ive...
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Forum: General Electronics Technical Discussion
09-22-2019, 09:04 PM
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Replies: 16
Views: 2,016
Re: How hard can I drive an IR Blaster?
Interesting. I picked a few cameras from the tip that have IR rings. Do they run in the same bands? Can i make an IR blaster from them for.. Say... A TV be gone?
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