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Search: Posts Made By: stj
Forum: General Computer & Tech Discussion Today, 04:04 AM
Replies: 16
Views: 228
Posted By stj
Re: Help me find a replacement power supply!

youtube is shit - and getting worse.
any box needs to be flexable enough to also run twitch,d-live etc.
Forum: General Electronics Technical Discussion Today, 04:02 AM
Replies: 37
Views: 408
Posted By stj
Re: Remote pump control ideas.

well.... - most of those boards have usb-otg, so you could just use a usb-stick instead of a card. :)
Forum: Troubleshooting Game Consoles & Other Weird Devices Today, 04:00 AM
Replies: 14
Views: 89
Posted By stj
Re: GORDAK 952 Rework soldering station problems

you should get a picture of the underside so we can see the tracks to be sure what they actually connect with.
and follow those green wires to see what they do.
Forum: Troubleshooting Game Consoles & Other Weird Devices Today, 12:17 AM
Replies: 14
Views: 89
Posted By stj
Re: GORDAK 952 Rework soldering station problems

but in parallel to the pump?
what function unless it's to provide a non-inductive load for the triac?
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 05:13 PM
Replies: 14
Views: 89
Posted By stj
Re: GORDAK 952 Rework soldering station problems

is it the 2 18k resistors in parallel with the (mains powered) pump?
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 05:11 PM
Replies: 6
Views: 81
Posted By stj
Re: Million volt PSU?

diode gone wild has done analysis and teardown of some of those.
Forum: General Electronics Technical Discussion Yesterday, 04:30 PM
Replies: 37
Views: 408
Posted By stj
Re: Remote pump control ideas.

btw probably obvious,
L = low power
F = fast
H = dual-core version of F!
first number afterwards is the core series.
3 being low spec, 4 is good, 7 is serious power! :D

last 2 digits is the...
Forum: General Electronics Technical Discussion Yesterday, 03:09 PM
Replies: 37
Views: 408
Posted By stj
Re: Remote pump control ideas.

look at the databrief, it will list which have ethernet, then go for big memory if your concerned,
i have an F746ZG somewhere here - that's pretty high end, with 1meg of flash.
compare that to 32k...
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 01:39 PM
Replies: 14
Views: 567
Posted By stj
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 01:37 PM
Replies: 14
Views: 89
Posted By stj
Forum: General Electronics Technical Discussion Yesterday, 01:28 PM
Replies: 37
Views: 408
Posted By stj
Re: Remote pump control ideas.

nucleo144 boards -most have ethernet.

and here is an arduino support page for which boards it supports
https://github.com/stm32duino/Arduino_Core_STM32#nucleo-144-boards
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 10:15 AM
Replies: 14
Views: 567
Posted By stj
Re: Corsair HX 450W shuts itself down after a while

yes, i see it - pin on the lower left in the photo is pulling out of the solder.
trust me - i see things like that long before most other people because i'v seen it so many times.
Forum: Troubleshooting Game Consoles & Other Weird Devices Yesterday, 10:10 AM
Replies: 14
Views: 89
Posted By stj
Re: GORDAK 952 Rework soldering station problems

that's terrible, do you have a higher res version?
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 06:14 AM
Replies: 14
Views: 567
Posted By stj
Re: Corsair HX 450W shuts itself down after a while

you have a cracked solder joint on the main transformer
given that they pull on the solder when upside-down, re-solder all of them.
Forum: Troubleshooting Power Supplies and Power Supply Design Yesterday, 02:20 AM
Replies: 33
Views: 13,198
Posted By stj
Re: D-Link router - faulty power brick?

how much?
probably more than the tiny difference between a glass fuse and a ceramic one! :D
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-25-2020, 08:19 AM
Replies: 156
Views: 28,956
Posted By stj
Re: Original Xbox Replacement Caps

yes, but we arent talking about poly's now - we are talking about std caps
Forum: General Electronics Technical Discussion 09-25-2020, 06:39 AM
Replies: 8
Views: 109
Posted By stj
Re: Help sourcing replacement / alternative chip

it takes a lot of heat to swap that package type - the entire underside is metal
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-25-2020, 05:07 AM
Replies: 51
Views: 1,050
Posted By stj
Re: Something is short on my van, but what?

which goes back to my comment about underhood plastic crap.

every kid puts a K&N filter on the throttle body,
car maker want to put a hose running to a bog box just because they hate to use a...
Forum: General Electronics Technical Discussion 09-25-2020, 05:03 AM
Replies: 8
Views: 109
Posted By stj
Re: Help sourcing replacement / alternative chip

part number is etched on it - next to the company logo :D
Forum: Equipment Usage, Soldering, Techniques, and Reviews 09-24-2020, 09:18 PM
Replies: 34
Views: 1,201
Posted By stj
Re: Tool Recommendation: soldering iron and hot air station

there are threads about the bakon, i use one.
T12 handles are cheap - about the same cost as the tips! :)
Forum: Troubleshooting Game Consoles & Other Weird Devices 09-24-2020, 09:16 PM
Replies: 156
Views: 28,956
Posted By stj
Re: Original Xbox Replacement Caps

because 6.3v was as low as you can go on large electrolytics, only polymers and small smd fo down to 4v or 2.5v
and the ripple handling will drop like a stone on smd electrolytics.
.
Forum: General Electronics Technical Discussion 09-24-2020, 09:10 PM
Replies: 14
Views: 241
Posted By stj
Re: what did i do wrong?

the modules dont sweep, they function on specific frequency's

but you first need to understand the chips.
they are just tiny memory chips with a capacitor and transciever combined.
the field...
Forum: Troubleshooting Power Supplies and Power Supply Design 09-24-2020, 02:59 PM
Replies: 33
Views: 13,198
Posted By stj
Re: D-Link router - faulty power brick?

that toy fuse is *very* close to the switching i.c. on the dc side! :D
if it explodes - as glass fuses do, the plasma will bridge the ac live directly into the switching i.c. and blow the whole...
Forum: General Electronics Technical Discussion 09-24-2020, 10:21 AM
Replies: 14
Views: 241
Posted By stj
Re: what did i do wrong?

https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20200924082044&SearchText=rfid+module
Forum: General Computer & Tech Discussion 09-24-2020, 02:23 AM
Replies: 16
Views: 228
Posted By stj
Re: Help me find a replacement power supply!

maybe instead of making brackets etc, you can pit a new psu board into the old macron case?
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