clee phone AVC

Started by Anonymous in sci.electronics.design1 hour ago 30 replies

Relative to some recent political reporting, a person was claimed to shout into a cell phone so loud that the other person had to take it away...

Relative to some recent political reporting, a person was claimed to shout into a cell phone so loud that the other person had to take it away from his ear, and then other people in the restaurant heard the speaker. Reminds me of the old submarine movies when the sonar operator, wearing headphones, is deafened by a depth charge explosion. Don't cell phones have AVC on the mike input, a...


OT: Providing Hope Va

Started by bitrex in sci.electronics.design3 hours ago 9 replies

Anyone ever entered one of these raffles? They get promoted on my Facebook a lot: There seems to be some question as to this...

Anyone ever entered one of these raffles? They get promoted on my Facebook a lot: There seems to be some question as to this organization's legitimacy:


Geophones

Started by amdx in sci.electronics.design6 hours ago 17 replies

Is there any advantage to wiring two geophones in series? Is their sensitivity limited by spring and mass so you gain nothing, assuming you...

Is there any advantage to wiring two geophones in series? Is their sensitivity limited by spring and mass so you gain nothing, assuming you have enough gain. They were on sale at $9.95, just went up to $13.95. > https://www.bgmicro.com/acs1582.aspx Mikek


Degradation at 185 c?

Started by Robert Baer in sci.electronics.design9 hours ago 6 replies

Anyone have experience with Megtron 6, Isola Getech, Isola 370HR? How long do they take to turn light brown? Dark brown? Become...

Anyone have experience with Megtron 6, Isola Getech, Isola 370HR? How long do they take to turn light brown? Dark brown? Become electrically unusable? Carbonize? How about above degradation at 200C? Thanks.


Though most of you won't care

Started by Michael Terrell in sci.electronics.design9 hours ago 31 replies

My dad passed away early this morning, so I will be taking a break for Usenet and other online groups for the time being. My email address is...

My dad passed away early this morning, so I will be taking a break for Usenet and other online groups for the time being. My email address is good, if someone needs something from me. Goodbye.


OT: red meat is bad for you and bad for the planet...

Started by Bill Sloman in sci.electronics.design12 hours ago 95 replies

Today's PNAS had one of those meta-studies https://www.pnas.org/content/116/46/23357?cct=1815 It covers 15 food groups, five aspects of...

Today's PNAS had one of those meta-studies https://www.pnas.org/content/116/46/23357?cct=1815 It covers 15 food groups, five aspects of agriculturally driven environmental degradation and five health categories. Much too complicated for those of our regular posters who need it most, so I high-lighted the red meat. -- Bill Sloman, Sydney


Could I have a little order with that chaos?

Started by Anonymous in sci.electronics.design12 hours ago 5 replies

Here at the Restaurant De R?alit? we like our chaos preparation and pride ouselves on how orderly it is... Definitely mind blowing.

Here at the Restaurant De R?alit? we like our chaos preparation and pride ouselves on how orderly it is... Definitely mind blowing.


OT: Hoverboard hack

Started by John Doe in sci.electronics.design14 hours ago 6 replies

https://www.flickr.com/photos/27532210@N04/? The objective is to separate them, and to use one of the hub motor wheels with one of the stock...

https://www.flickr.com/photos/27532210@N04/? The objective is to separate them, and to use one of the hub motor wheels with one of the stock circuit boards to control it. I might put one on a scooter. At 5.5 pounds per hub motor wheel, but whatever. I got it set up so I can probe the circuit board. It powers on and the wheels rotate when the circuit boards are tilted. In the pict...


gEDA PCB footprints for potted transformers.

Started by Johann Klammer in sci.electronics.design15 hours ago 1 reply

I looked at that gedafootprints site but they only had one(1) transformer of the wrong size. So here's my .inc file for those. Beware....

I looked at that gedafootprints site but they only had one(1) transformer of the wrong size. So here's my .inc file for those. Beware. dimensions were hand transcribed from a pdf. # single output safety transformer \n $1: canonical name # $2: nameonpcb # $3: value # $4: A (mechanical dimensions in um) # $5: B # $6: C # $7: D # $8: E # $9: F # $10: pin size define(`PKG_BLOCK1


OT Puzzle if you have time

Started by Klaus Kragelund in sci.electronics.design18 hours ago 22 replies

1+2=21 2+3=36 3+4=43 4+5=?

1+2=21 2+3=36 3+4=43 4+5=?


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