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Search took 0.08 seconds. Search: Posts Made By: stj
Forum: Equipment Usage, Soldering, Techniques, and Reviews Today, 05:17 PM
Replies: 54
Views: 2,869
Posted By stj
Re: New tool to find short capacitors on motherboards : shorty with display

i always go for the biggest memory.
i may try this project on a bluepill - 80MHz 128k flash :)
the advantage of having stuff just sitting here is i can try such stuff :)
waiting for the postman to...
Forum: Troubleshooting & Designing Networks Today, 08:07 AM
Replies: 5
Views: 46
Posted By stj
Re: Home network connection problem

i hope this is not a repeat of the bullshit in older windows versions of limiting the network connections in home versions!!
Forum: Equipment Usage, Soldering, Techniques, and Reviews Today, 08:05 AM
Replies: 54
Views: 2,869
Posted By stj
Re: New tool to find short capacitors on motherboards : shorty with display

or with micro-usb :)
though for some reason it has a huge 12MHz crystal in the picture!??
https://www.aliexpress.com/item/32292945241.html
Forum: General Electronics Technical Discussion Today, 05:01 AM
Replies: 209
Views: 6,244
Posted By stj
Re: Remote pump control ideas.

we just experimenting :D
and the nucleo isnt going to be pulling several amps - so size isnt a thing.
Forum: Equipment Usage, Soldering, Techniques, and Reviews Today, 04:59 AM
Replies: 54
Views: 2,869
Posted By stj
Re: New tool to find short capacitors on motherboards : shorty with display

@kripton2035:
just to clarify before i order any more,
your pcb is for a NANO?
Forum: Equipment Usage, Soldering, Techniques, and Reviews Today, 04:58 AM
Replies: 1
Views: 41
Posted By stj
Re: Hot air station

i use 360 for unleaded solder.
even that can struggle with some laptops that seem to have solder with no copper in it!
Forum: Equipment Usage, Soldering, Techniques, and Reviews Today, 04:56 AM
Replies: 54
Views: 2,869
Posted By stj
Re: New tool to find short capacitors on motherboards : shorty with display

i put some in amiga's, one in an arcade system, and i have a few loose ones for testing stuff. :)
Forum: General Electronics Technical Discussion Yesterday, 04:35 PM
Replies: 209
Views: 6,244
Posted By stj
Re: Remote pump control ideas.

yes, the thing like a 4pin transformer on any switching psu - like dvd players etc.
near the mains input
Forum: Equipment Usage, Soldering, Techniques, and Reviews Yesterday, 03:21 PM
Replies: 54
Views: 2,869
Posted By stj
Re: New tool to find short capacitors on motherboards : shorty with display

making a clean hole is always a challenge, but mounting is easy.
just put a block of packaging foam behind it to gently press it against the front.
Forum: Troubleshooting Audio Equipment Yesterday, 03:19 PM
Replies: 3
Views: 194
Posted By stj
Re: Repairing Alesis M1 MK2 Monitor Speakers

interesting connectors.
10x the price of a 6.3mm jack - but i like them!
Forum: General Electronics Technical Discussion Yesterday, 03:18 PM
Replies: 13
Views: 171
Posted By stj
Re: Mains isolating transformer advice please

for the record,
yellow = 110v
blue = 220v
red = 415v
also is white and purple among others for unusual voltages.
Forum: General Electronics Technical Discussion Yesterday, 03:15 PM
Replies: 13
Views: 171
Posted By stj
Re: Mains isolating transformer advice please

yea, i hope your not running a 110:110 isolator at 220v!!! :D
Forum: General Electronics Technical Discussion Yesterday, 03:13 PM
Replies: 209
Views: 6,244
Posted By stj
Re: Remote pump control ideas.

maybe you need a common-mode choke on the dc between the meanwell and nucleo - to kill any parasitic shit the wiring collects
Forum: Troubleshooting Audio Equipment Yesterday, 10:55 AM
Replies: 10
Views: 769
Posted By stj
Re: Mission MS8 Subwoofer

atleast the conductive glue is only shorting the opamp input!
Forum: Equipment Usage, Soldering, Techniques, and Reviews Yesterday, 09:40 AM
Replies: 54
Views: 2,869
Posted By stj
Re: New tool to find short capacitors on motherboards : shorty with display

sounds good - i may need a few.
Forum: General Computer & Tech Discussion 03-04-2021, 01:14 PM
Replies: 11
Views: 162
Posted By stj
Re: Parts Finders; I challenge you! USB3 Jack Needed!

type4??
https://www.aliexpress.com/item/1005001701318635.html

crap image - but it has the contacts the right way.
too bad there is no pin/underside shot
Forum: General Computer & Tech Discussion 03-04-2021, 01:07 PM
Replies: 6
Views: 308
Posted By stj
Re: iMac is not visible for iCloud unlocking

given that osx is actually BSD, i imagine performance is about equal.
Forum: General Computer & Tech Discussion 03-04-2021, 01:06 PM
Replies: 11
Views: 162
Posted By stj
Re: Parts Finders; I challenge you! USB3 Jack Needed!

well spotted, it wont fit on the board.
Forum: Troubleshooting Power Supplies and Power Supply Design 03-04-2021, 11:48 AM
Replies: 26
Views: 635
Posted By stj
Re: An old dinosaur bench top power supply - help needed

when i worked in the arcade industry 7805's running 5a in a TO3 can where everywhere.
heatsink like a shoebox!!!

by around 86 switching psu's became cheap enough to replace them!
Forum: General Computer & Tech Discussion 03-04-2021, 11:36 AM
Replies: 11
Views: 162
Posted By stj
Re: Parts Finders; I challenge you! USB3 Jack Needed!

https://www.aliexpress.com/item/32883547115.html
:)
Forum: General Electronics Technical Discussion 03-04-2021, 06:41 AM
Replies: 13
Views: 171
Posted By stj
Re: Mains isolating transformer advice please

that RS link is confusing,
it has pictures with both IEC603 (110v) and SCHUKO (230v) input cables!

that said, i'm not sure a transformer with the output center-tapped to earth is a good idea with...
Forum: General Electronics Technical Discussion 03-03-2021, 06:52 PM
Replies: 209
Views: 6,244
Posted By stj
Re: Remote pump control ideas.

they cant really blow up because while the cap can short, it has the series resistor to limit the current.
Forum: General Computer & Tech Discussion 03-03-2021, 02:42 PM
Replies: 6
Views: 308
Posted By stj
Re: iMac is not visible for iCloud unlocking

tell him to contact apple over such bs.
i didnt even know this shit (find my mac - or whatever) extended to full-size stuff!
meantime - put linux on it.
Forum: General Electronics Technical Discussion 03-03-2021, 02:40 PM
Replies: 209
Views: 6,244
Posted By stj
Re: Remote pump control ideas.

you can put snubbers across the relay contacts or maybe even the contactor.
Forum: Troubleshooting Power Supplies and Power Supply Design 03-03-2021, 02:36 PM
Replies: 26
Views: 635
Posted By stj
Re: An old dinosaur bench top power supply - help needed

https://www.cricklewoodelectronics.com/78P05.html
:)
i actually have 3a and 5a 7805's in one of my old parts drawers.
dont ask how big the heatsinks were on them back in the mid 80's!!
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