Digest for sci.electronics.repair@googlegroups.com - 6 updates in 3 topics

micky <NONONOmisc07@fmguy.com>: Feb 05 11:38PM -0500

I have a pair of Bose Hearphones, cheaper than hearing aids.
 
I only use it at meetings (which I don't go to because of Corona) and to
watch Law & Order on TV (because all the other shows are loud enough but
it's not.)
 
The device consists of a yoke with the on/off button, two leds, a
charging jack, and the battery, and two earbuds.
 
Each earbud has 3 microphones, they say**, and when being put in my ears
they sometimes squeal, which the manual says is normal. Feedback, I
guess.
 
The question is, when both buds are no longer in my ears, the device
waits a while and turns off.
 
How does it know that the earbuds are no longer in my ears?
 
 
 
**And it can be set to amplify what's in front, what's in front and to
the sides, and sounds from all diretions, so it probably does have 3
mikes per ear.
 
As good as this might sound, there are one or two other competitors.
Before I bought this I googled but didn't find them. One will play the
last 10 seconds back again, and iirc will play the last 10 seconds at
reduced speed. I'd feel real bad that I didn't get that one, except I
probably wouldn't use those things, at least at a lecture. If I were in
the market, I'd look at the others before buying any of them.
"Rod Speed" <rod.speed.aaa@gmail.com>: Feb 06 04:52PM +1100

"micky" <NONONOmisc07@fmguy.com> wrote in message
news:227s1g12me5onj0o1i6a79stskif7f50qt@4ax.com...
 
> The question is, when both buds are no longer in my ears, the device
> waits a while and turns off.
 
> How does it know that the earbuds are no longer in my ears?
 
I was going to say because it can no longer
shine a light from ear bud to the other...
 
One obvious approach would
be temperature or capacitance.
 
Peeler <trolltrap@valid.invalid>: Feb 06 10:18AM +0100

On Sat, 6 Feb 2021 16:52:10 +1100, cantankerous trolling geezer Rodent
Speed, the auto-contradicting senile sociopath, blabbered, again:
 
 
> shine a light from ear bud to the other...
 
> One obvious approach would
> be temperature or capacitance.
 
IOW, you haven't the foggiest, but you will mouth off in your known
"all-knowing" manner anyway, you subnormal senile know-it-all!
 
--
"Who or What is Rod Speed?
 
Rod Speed is an entirely modern phenomenon. Essentially, Rod Speed
is an insecure and worthless individual who has discovered he can
enhance his own self-esteem in his own eyes by playing "the big, hard
man" on the InterNet."
https://www.pcreview.co.uk/threads/rod-speed-faq.2973853/
micky <NONONOmisc07@fmguy.com>: Feb 05 11:37PM -0500

In sci.electronics.repair, on Mon, 1 Feb 2021 09:40:57 -0800 (PST), Tim
 
>We turn on our Emerson Model LF391EM4F flat screen, (manufactured 2013). The screen shows the Emerson logo, then there's a staticky pop noise and it shuts off.
 
>I tried unplugging it for a bit and plugging it back in. No luck. We've had it for a while, and TVs are dirt cheap now. But here's what seems weird.
 
>I'm teleworking so I have to be on line for work. When I unplugged it, our WiFi stopped. It came back up maybe 5 minutes or so later. Very annoying if you're on a video call. I was pretty sure I hadn't unplugged the cable box or router.
 
This won't help you at all, but I have two table radios, one on top of
another, and when I turn one on, a certain station I listen to on the
other goes totally silent!!
 
Jef Od <jodell66@gmail.com>: Feb 05 02:47PM -0800

Hello all. I tried to locate a chat room for this specifically but...this is the only thing that I've found.
 
I'm not electronically knowledgeable enough to know what to do so, here's my question;
I have a blown HER303 and I'm wondering if I should replace it with a "larger" diode? I ask this since it looks like it stays pretty hot whenever energized.
 
Oh yea, this is a compact hard drive power supply.
 
Any help would be VERY appreciated.
 
~Jef
Jef Od <jodell66@gmail.com>: Feb 05 03:04PM -0800

On Friday, February 5, 2021 at 5:47:42 PM UTC-5, Jef Od wrote:
 
UPDATE: I really don't understand this depth of verbiage but, I found this post and would very much appreciate some "seasoned guidance".
 
This Mouser diode has both lower reverse recovery time and is rated for 4 Amps at 80C.
http://www.mouser.com/search/ProductDetail.aspx?qs=cfR2GKjf2RmZMQwrlOf4Ew%3D%3D
 
~Jef
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