sci.electronics.repair Google Group

Re: Increasing the range/output power of a UHF video sender?

2010-03-11T20:07:09Z

It's the antenna shape and all the nearby grounded or reflective
elements that creates 'antenna gain'. A metal-sheet reflector, for
instance, one half wavelength parallel to your whip antenna,
can give 3 dB of gain. This is the result of directing the antenna
output power, not of increasing it, but the effect at the receiver

Re: Insignia NS-HDTUNE Take Apart/Exploration

2010-03-11T19:07:11Z

No. I have three vehicles, all with Sirius. Two are after-market, one
factory. None have them
have ever worked when pulled into my garage, wooden roof with asphalt
shingles, no ceiling, nothing above them except roof. The one in the Caddy
(Xact Visor) will lose signal going down a tree lined
lane in the summer time. No repeaters in my rural area. I find you're

Re: Who says incandescent lamps are dead ?

2010-03-11T19:01:35Z

In our home they represent 0% of lamps in service. (I have a large
supply of incandescents socked away so will be able to continue using
them despite any illicit government ban. Screw the environmentalists,
hunt 'em down like the rabid animals they are.)

Re: Clueless customers

2010-03-11T18:58:21Z

Most people are just too stoopid to be using a computer. They would be
far better off and everyone happier if they stuck to using a typewriter.

hacked by a battery charger?

2010-03-11T18:49:11Z

[link]
bob

Re: Clueless customers

2010-03-11T18:49:43Z

On 3/10/2010 11:54 PM Jeff Liebermann spake thus:
[...]
Ah; I think the saying that applies here is "No good deed goes unpunished".

Re: Need a sound recorder, what should I get?

2010-03-11T18:44:51Z

Harbor Freight has a similar sound level meter for $14.97 right now:
<[link]>
Here is the owner's manual:
<[link]>

Re: Need a sound recorder, what should I get?

2010-03-11T18:34:46Z

Excellent advice. Listen to the man...

Re: Crack propogation to inside an IC

2010-03-11T18:30:55Z

Replace it now. The case is cracked, and at least one bonding wire
is damaged. It's not a matter of if it will quit, but when. The
damaged case will let moisture into the die, and it will oxidize.

Re: Clueless customers

2010-03-11T18:17:48Z

On Wed, 10 Mar 2010 21:52:38 -0800, Jeff Liebermann <je...@cruzio.com>
wrote:
I have the image of the evil explorer falling into a pond full of
pirhania.
That makes sense. The odds are that half the time he'll put it in
right-side-right.
It has a cup-holder. It just holds the cup sideways. Darn. Jeff

Re: Need a sound recorder, what should I get?

2010-03-11T18:15:42Z

dBA was originally intended as an indicator of the potential of
industrial noise to cause hearing damage, it had deliberately reduced
sensitivity to low frequencies because they caused proportionately less
damage (and also to make an advantage out of the fact that the
microphone of the original sound meters was not very sensitive to bass

Re: Clueless customers

2010-03-11T18:13:15Z

OTOH, if you destroyed a CD-ROM or two, they weren't as careless the
next time.

Re: Update: Charging MP3 Player, Coby MP620-4G

2010-03-11T18:10:55Z

JW wrote:
IBM did that with the keyboard on their original XT motherboard, with
no fuse. I had a customer's keyboard cable short at the keyboard. If
he hadn't been at the computer when it happened, it would have set his
house on fire. There was nothing but a few pieces of bare, burnt wire
left.

Re: Clueless customers

2010-03-11T17:54:18Z

On Wed, 10 Mar 2010 21:52:38 -0800, Jeff Liebermann
I gave up on PC repair because of the people who use them and don't
learn from their mistakes. I went back to vintage musical instrument
repair like tube amplifers and recording studio gear from the 70's.
I have a couple good clients who really understand their gear and

Re: Crack propogation to inside an IC

2010-03-11T17:47:45Z

There is nothing common about damage from g-forces.