Search found 2074 matches

by jwax
Wed Jan 23, 2019 9:10 am
Forum: General Discussion
Topic: Swinging Sticks
Replies: 4
Views: 1538

Re: Swinging Sticks

Thanks! Good info there, but nothing about the electronics.
by jwax
Wed Jan 23, 2019 9:07 am
Forum: General Discussion
Topic: Sysop Note: Logon Amnesia
Replies: 21
Views: 3695

Re: Sysop Note: Logon Amnesia

Win 10, using Chrome. I've been away for a few months, but have the logon problem lately. It is as the OP describes. I have to logon while I am already logged on, but to reply, must logon again.
by jwax
Mon Jan 21, 2019 6:30 pm
Forum: General Discussion
Topic: Swinging Sticks
Replies: 4
Views: 1538

Swinging Sticks

Would like to build one of these, but don't know where to start designing the circuitry as described in this video: https://www.youtube.com/watch?v=PWg6TG2bkFU The circuit fires a coil depending on the presence of a Neo magnet in one of the sticks. Hall effect sensor, I presume. But, not every time....
by jwax
Sat Apr 21, 2018 7:48 am
Forum: General Discussion
Topic: Aftermaster
Replies: 5
Views: 2051

Aftermaster

Anybody try this gadget?
https://aftermasterpro.com/

Sounds (hehe) a tad bogus, but unless I hear one, who knows?
by jwax
Wed Apr 11, 2018 2:49 pm
Forum: General Discussion
Topic: Detecting a magnet... from a distance.
Replies: 23
Views: 5848

Re: Detecting a magnet... from a distance.

FWIW, just saw on the science channel that our sun's magnetic field extends out to the Ort Cloud- way past Pluto. :o
by jwax
Mon Mar 05, 2018 8:09 am
Forum: General Discussion
Topic: i'm looking for some connectors
Replies: 3
Views: 1805

Re: i'm looking for some connectors

Look at these folks- All Electronics
https://www.allelectronics.com/category ... ing/1.html
by jwax
Mon Mar 05, 2018 8:02 am
Forum: General Discussion
Topic: HDMI Plug\Connector Issues (RANT)...........
Replies: 11
Views: 4101

Re: HDMI Plug\Connector Issues (RANT)...........

You must be buying the cheap ones.
Here's what you need:
https://www.amazon.com/P568-100-HD-HDMI ... hdmi+cable
:shock:
by jwax
Thu Feb 01, 2018 8:57 am
Forum: General Discussion
Topic: Detecting a magnet... from a distance.
Replies: 23
Views: 5848

Re: Detecting a magnet... from a distance.

So that $1,200 price tag is real? Hard to believe.
by jwax
Thu Feb 01, 2018 7:40 am
Forum: General Discussion
Topic: Very unusual desoldering method...
Replies: 9
Views: 2633

Re: Very unusual desoldering method...

Maybe add a glass lens and fry small critters like ants!
Or, contactless wood burning!
by jwax
Thu Feb 01, 2018 7:29 am
Forum: General Discussion
Topic: Detecting a magnet... from a distance.
Replies: 23
Views: 5848

Re: Detecting a magnet... from a distance.

That price of $1,200 seems a tad high for that chip.
Should be: https://www.amazon.com/TMR2102P-Linear- ... 611&sr=8-1

Of course, lenp's idea is feasible too. :)
by jwax
Wed Jan 31, 2018 2:35 pm
Forum: General Discussion
Topic: Detecting a magnet... from a distance.
Replies: 23
Views: 5848

Re: Detecting a magnet... from a distance.

I'll bite. How about a million-turns coil, and a nano-voltmeter?
Question- would it be more or less sensitive with air core or iron core?
by jwax
Sun Jan 14, 2018 5:50 am
Forum: General Discussion
Topic: Hammond die cast al case, heat sink?
Replies: 11
Views: 3255

Re: Hammond die cast al case, heat sink?

Better than no heat sink!
by jwax
Thu Dec 28, 2017 6:40 am
Forum: General Discussion
Topic: Greetings!
Replies: 5
Views: 1958

Re: Greetings!

Hoping all us kids got what they were hoping for this Christmas! (if you've been nice all year!)
The only plan I found that works for not enough storage space is to buy more space. Time to move! :)
Happy New Year all!
John
by jwax
Wed Nov 08, 2017 3:31 pm
Forum: General Discussion
Topic: Microwave oven transformer... reversed.
Replies: 10
Views: 3787

Re: Microwave oven transformer... reversed.

Amazingly versatile transformer, that is. Wind it for whatever you like!
Only concern about an unloaded secondary with the primary powered, is contact between the secondary wires! Lotta amps!