Mosquito Sound

[John Halley]

Well, this is because they don't hire people anymore who know a thing about
the technology that they're pushing. They hire sales people who are paid to
get a sale no matter what.
It's like 7-11 and Checker Auto Parts. Fine for picking up a fuse, a
Twinkie, quart of oil.
Beyond that, you'd better find a good local electronics store.
Problem is, the good ol' parts stores are rapidly disappearing, at least
they are here in Denver.
Gateway - Gone. Krumps - Gone. Quest - Gone. Fistell's might still be
around, I'll have to check...
Theses are the places that you have to watch your step as you walk through
the aisles.
It was overwhelming. There was nothing you couldn't find!
I guess I'll just have to start an account with Digikey or Newark or Mouser.
--- Heavy sigh...---

The indignant one.
**************

"Fuzzie Dice" <nope@nothere.comnot> wrote in message
news:cd90ms62bb9@enews3.newsguy.com...
| Wes Groleau wrote:
| > But I agree about Radio Shack in general. Not a great place to buy.
|
| They *used* to be. Back in the 80s I had a Tandy Color Computer 3 and also
| bought stereo equipment from them and other computer stuff (including a PC
| once). They used to make good on things, packaging or not. I have noticed
| recently that they have went downhill over the years though. Such a shame.
| My problems were that the staff weren't as well informed about their
| products as the staff they used to have in the 80s.
|
|
|

 

[James T. White]

"terry" <leonlai2k@yahoo.com> wrote in message
news:9904d48.0409081951.37ea222d@posting.google.com...

Hi,

When drilling holes in PCB, drifting of drilling bit will make the
copper pad vanish, do anyone knows how to prevent this to happen?

I know the general method is to use shorter and smaller drilling bit.
Does the rotation speed affect the result?

Thanks!

Assuming you are etching your own boards, you might find it useful to put a very
small hole at the center of all the pads. If you get the size right, it acts
just like a center punch on metal and the drill stays in the center of the pad.
It also helps to have very, very sharp drill bits and get the drill speed right.

--
James T. White

 

[Clarence]

"James T. White" <SPAMjtwhiteGUARD@SPAMhal-pcGUARD.org> wrote in message
news:4143a5af$0$448$a726171b@news.hal-pc.org...

"terry" <leonlai2k@yahoo.com> wrote in message
news:9904d48.0409081951.37ea222d@posting.google.com...
Hi,

When drilling holes in PCB, drifting of drilling bit will make the
copper pad vanish, do anyone knows how to prevent this to happen?

I know the general method is to use shorter and smaller drilling bit.
Does the rotation speed affect the result?

Thanks!

Assuming you are etching your own boards, you might find it useful to put a
very
small hole at the center of all the pads. If you get the size right, it acts
just like a center punch on metal and the drill stays in the center of the
pad.
It also helps to have very, very sharp drill bits and get the drill speed
right.

--
James T. White

If your using re-sharpened bits, and who isn't? Be very careful to see to it
the center of the bit is really the center of rotation. We had this problem
and solved it by carefully inspecting the drill bit under a microscope and
rotating it in a mandrill to assure they are concentric on the center of
rotation. Made a BIG difference.

Also be sure the drill is turning at the recommended RPM and not loading down,
they tend to drift if the bit is binding.

 

[Rich.Andrews]

bullmordt@yahoo.co.nz (G.K. Konnig) wrote in
news:3ff97a0d.0409112138.443aab84@posting.google.com:

I just discovered that I have the force and I now need a lightsabre to
finally become a Jedi and to fight evil Sith.

What do I need to build a lightsabre?

A lightsabre isn't built, it is earned. For more details, see Yoda.

r


--
Nothing beats the bandwidth of a station wagon filled with DLT tapes.

 

[Rich.Andrews]

fynnashba@yahoo.com (kofi Mpengya) wrote in
news:f9556b55.0409111342.6581316b@posting.google.com:

Hi good pals
I'm having a problem with my 240 500watts AC generator.
The output goes to abt 270v with no load but drops to 60v with just a
14'' tv and a VCR connected. How do I about this problem? BTW the
excitation section was faulty
so I just rectified the AC (not the main output) and fed it back to
excitation coil. Is there a special way for excitaing generators?

Yes there is. You need a regulation unit. Without a regulator, the
generator is useless.

r


--
Nothing beats the bandwidth of a station wagon filled with DLT tapes.

 

[Clarence]

"Rich.Andrews" <spmaway@ylhoo.com> wrote in message
news:Xns9562A9EFAD0Amc2500183316chgoill@10.232.1.1...

bullmordt@yahoo.co.nz (G.K. Konnig) wrote in
news:3ff97a0d.0409112138.443aab84@posting.google.com:

I just discovered that I have the force and I now need a lightsabre to
finally become a Jedi and to fight evil Sith.

What do I need to build a lightsabre?

A lightsabre isn't built, it is earned. For more details, see Yoda.
r

You can buy one at Disneyland. They have a ample supply. Take the Speeder to
Tatone, and get your lightsaber as you exit the "Star Tour"

 

[alpha_uma]

"Rich.Andrews" <spmaway@ylhoo.com> wrote in message
news:Xns9562A9EFAD0Amc2500183316chgoill@10.232.1.1...

bullmordt@yahoo.co.nz (G.K. Konnig) wrote in
news:3ff97a0d.0409112138.443aab84@posting.google.com:

I just discovered that I have the force and I now need a lightsabre to
finally become a Jedi and to fight evil Sith.

What do I need to build a lightsabre?


A lightsabre isn't built, it is earned. For more details, see Yoda.

r

Ahh, but the Dark Side have been selling them for years. You can even buy
some here:

<spoof>
http://www.thespoof.com/news/spoof.cfm?headline=s5i5465
</spoof>

Al-U

 

[Vexator]

Are in America old "Star Wars" trilogy sold on DVDs ? Here there's on VHS
only.

--
MEMENTO AVDERE SEMPER
Giovanni (Italy)

..
"G.K. Konnig" <bullmordt@yahoo.co.nz> ha scritto nel messaggio
news:3ff97a0d.0409112138.443aab84@posting.google.com...

I just discovered that I have the force and I now need a lightsabre to
finally become a Jedi and to fight evil Sith.

What do I need to build a lightsabre?

 

[Robert Baer]

JS wrote:

"John Halley" <comet@dimensional.com> wrote in
news:41434434$1_3@omega.dimensional.com:

It was overwhelming. There was nothing you couldn't find!
I guess I'll just have to start an account with Digikey or Newark or
Mouser. --- Heavy sigh...---


Digikey is highly regarded round these parts.

...and Mouser is better for quantity pricing; aqlmost as good as a disty.

 

[Robert Baer]

martinbradly@ed.shawcable.net wrote:

Osama wa photographed here cutting a young childs head off, these pictures were discovered early last week and posted here yesterday
http://sabine.angelboy.us

....and, of course, this is *after* he hung himself!

 

[Achim Metzen]

"Winfield Hill" <Winfield_member@newsguy.com> schrieb im Newsbeitrag
news:chr1i602fco@drn.newsguy.com...

Jim, I'd very much like to look at your 600B manual, or at least
the schematic page.

it is downloadable from www.keithley.com ...
But I have not found Infos about any Battery for the 610B.

Rgds
Achin

 

[Winfield Hill]

Jim Adney wrote...

... If either of you want a copy just email me your address and
I'll Xerox one for you.

I also have replacement subminiature tubes for these, as well as
a circuit and method for matching them. I've resurrected several
of these, and their AC powered mates, over the years.

Thanks, I got the manual from Keithley's website. I have my
technician tear these apart for the teflon switches and Gig-ohm
resistors, but he did save some of the miniature tube assemblies.


--
Thanks,
- Win

(email: use hill_at_rowland-dotties-org for now)

 

[Robert Lacoste]

My guess is that $100 is very, very low to attract good players. Usual
design contests offers more $5K to $10K first prizes...

 

[Manika Prasad]

Hello Friends and Colleagues,

We are organizing the next Acoustical Imaging conference in San
Diego in 2005 and would like to invite your group to particiapte. The URL
for the meeting is: http://www.ryalsmeet.com/meetings/UCSD032105/main.htm

This is a great conference for people involved in acoustics from all over
the spectrum. You can present you work on acoustics at any and all scales:
from nanometer to km.

Best wishes,
Manika Prasad
********************************************************************
Manika Prasad Tel.: (650) 723-8547
Geophysics Department OR (650) 723-0166 (lab)
397 Panama Mall Fax: (650) 723-1188
Stanford University email: manika.prasad@stanford.edu
Stanford, CA 94305-2215
URL: http://pangea.stanford.edu/~manika/manika.html
********************************************************************

 

[Watson A.Name - \"Watt Su]

"John Halley" <comet@dimensional.com> wrote in message
news:41434434$1_3@omega.dimensional.com...
[snip]

I guess I'll just have to start an account with Digikey or Newark or
Mouser.
--- Heavy sigh...---

I've found a lot of parts I need on Ebay. Lots cheaper than Digi-Key
and Mouser.

I used to go to Radio Scrap a lot more often, maybe once every two
weeks, but now I'm down to once ever few months. Last year, I got
burned so bad on some two line telephone sets (half the time the user
picked it up they couldn't hear anything) that I was very disappointed.
And with the salesdreoids always busy with some cell phone customer (it
takes them forever), I've walked out of the store after waiting ten or
15 minutes with no end in sight. Thanks, RS, you've made our day. :-(

The indignant one.

[snip]

 

[Watson A.Name - \"Watt Su]

"Clarence" <No@No.Com> wrote in message
news:t0Q0d.18590$lW3.2918@newssvr27.news.prodigy.com...
[snip]

If your using re-sharpened bits, and who isn't? Be very careful to
see to it
the center of the bit is really the center of rotation. We had this
problem
and solved it by carefully inspecting the drill bit under a microscope
and
rotating it in a mandrill to assure they are concentric on the center
of
rotation. Made a BIG difference.

Hah-hah-hah! I'd like to see you try to put a drillbit in a monkey's
nose!! Silly!

http://www.google.com/search?hl=en&ie=UTF-8&q=mandrill+definition&btnG=G
oogle+Search

Also be sure the drill is turning at the recommended RPM and not
loading down,
they tend to drift if the bit is binding.

 

[Bob Day]

"Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com> wrote in
message
news:10kj0dojf91md3f@corp.supernews.com...
< snip >

With Fedex, everything goes thru Memphis, so it shouldn't make any diff.
UPS I don't know. Fedex sucks IMHO. Nowadays, DHL is eating UPS' and
Fedex's lunch, and I hope they put Fedex out of business.

I've always had very good luck with FedEx. It's UPS I try
to avoid.

-- Bob Day
http://bobday.vze.com

 

[kony]

On Thu, 16 Sep 2004 14:01:01 GMT, "Bob Day"
<xxxxxxx@yyyyyyy.com> wrote:

"Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com> wrote in
message
news:10kj0dojf91md3f@corp.supernews.com...
snip
With Fedex, everything goes thru Memphis, so it shouldn't make any diff.
UPS I don't know. Fedex sucks IMHO. Nowadays, DHL is eating UPS' and
Fedex's lunch, and I hope they put Fedex out of business.


I've always had very good luck with FedEx. It's UPS I try
to avoid.

Me too, Fedex always does best job here, a lot of the time I
ship out regular ground and it gets there next-day. They're
also cheaper than UPS if you ship pieces-at-a-time instead
of an account.

 

[Larc]

On Thu, 16 Sep 2004 14:01:01 GMT, "Bob Day" <xxxxxxx@yyyyyyy.com>
wrote:

|
| "Watson A.Name - "Watt Sun, the Dark Remover"" <NOSPAM@dslextreme.com> wrote in
| message
| news:10kj0dojf91md3f@corp.supernews.com...
| < snip >
| > With Fedex, everything goes thru Memphis, so it shouldn't make any diff.
| > UPS I don't know. Fedex sucks IMHO. Nowadays, DHL is eating UPS' and
| > Fedex's lunch, and I hope they put Fedex out of business.
| >
|
| I've always had very good luck with FedEx. It's UPS I try
| to avoid.

Amen to that! NewEgg ships via FedEx and my stuff nearly always
arrives at least a day earlier than scheduled.

Larc



§§§ - Change planet to earth to reply by email - §§§

 

[Robert Baer]

"Watson A.Name - \"Watt Sun, the Dark Remover\"" wrote:

"Dave Woolf" <NOSPAMdwoolf@worldnet.att.net> wrote in message
news:413E65EC.9040907@worldnet.att.net...
George:

I also have a 600B. The four batteries are indeed 9V,
but a very early model. They are 1 3/8" x 1 3/8" x
x 2 5/8". I kept one just for the heck of it
that I removed from my original meter. It is a
zinc carbon EVEREADY no. 246. (NEDA 1602) Don't known
if still available, but I would guess if they are
you would pay an arm and leg for them. I use regular
size 9 V alk. batteries with reasonable battery life.

You guessed correctly the small cylindrical battery
is indeed a mercury cell (1.35 volts if I remember).
I kept it also but can't seem to locate it right now.
Good luck finding a replacement. I went looking for one
several years ago and found that it is illegal (Federal
Environmental Law) to sell or even import batteries
containing mercury. Never found a source. If you do
let me know. Since it is used for the linear
Ohms scale using a regular alkaline battery will make
the scales significantly inaccurate. I think the
drain is extremely low so I thought about designing
a voltage regulator circuit running off a higher voltage
battery but never got around to doing it.

The 600B is a nice meter. I picked mine up for $10 at
Dayton HF one year. Don't have a schematic though. If
you get a lead on that let me know.

HF = hamfest??

Use a 1.5V alkaline button cell and recalibrate? Or else use 4.5V or
more battery and a micropower voltage regulator with a couple resistors
that give a 1.35V output. The current drain should be very low.

Dave Woolf - K8RSP
(If replying directly remove NOSPAM from above address)

George R. Gonzalez wrote:
HI, I have a clean-looking Keithley 600B electrometer.

Problem is, no manual, and no clue what kind of batteries it needs.

There's a small battery holder that maybe could hold a small
old-style
(1/3 AA) mercury battery. And FOUR clips that would fit your basic
9V
006P, except the holding bracket for them is about 8 times too
volume-iffic.

Any hints appreciated.

Reagards,

George

If one were to use one of those micropower regulators, one would need
to use a 1.25V adjustable and two resistors in a voltage divider...