tip of the month #7

[Jim Thompson]

On Fri, 22 Oct 2004 14:25:17 -0400, Spehro Pefhany
<speffSNIP@interlogDOTyou.knowwhat> wrote:

On Fri, 22 Oct 2004 17:38:32 GMT, the renowned Rich Grise
rich@example.net> wrote:

Some guy once saw me drilling some sheet aluminum, and remarked
that "you're going to get a three-sided hole", which I did, and
so mine have been triangular ever since.

Cheers!
Rich

Clamp everything down really well and drill into sacrificial material
and you'll get a nice hole even with an aggressive twist drill. I like
center/centre drills for medium-size holes in plastic.

That's what the Black and Decker "Bullet" bits are, center/centre bits
with sheet metal "wings".

Best regards,
Spehro Pefhany

...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice480)460-2350 | |
| E-mail Address at Website Fax480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |

I love to cook with wine. Sometimes I even put it in the food.

 

[Terry Given]

John Fields wrote:

On 23 Oct 2004 15:45:34 GMT, Ian Stirling <root@mauve.demon.co.uk
wrote:


Frank Bemelman <f.bemelmanx@xs4all.invalid.nl> wrote:
snip
If faced with two wires of the same colour that you're making into a loose
hookup.
Tie a knot in one wire at each end.
For DC, knot=naught=0V.


---
I've always used "knot=hot".

dont you think "knot hot" is a more accurate description for 0V?

Cheers
Terry

 

[Bob Stephens]

On Wed, 27 Oct 2004 21:00:45 +1300, Terry Given wrote:

John Fields wrote:

On 23 Oct 2004 15:45:34 GMT, Ian Stirling <root@mauve.demon.co.uk
wrote:


Frank Bemelman <f.bemelmanx@xs4all.invalid.nl> wrote:
snip
If faced with two wires of the same colour that you're making into a loose
hookup.
Tie a knot in one wire at each end.
For DC, knot=naught=0V.


---
I've always used "knot=hot".


dont you think "knot hot" is a more accurate description for 0V?

Cheers
Terry

Well thanks guys. Now I'll never remember which is which.

 

[John Fields]

On Wed, 27 Oct 2004 21:00:45 +1300, Terry Given <my_name@ieee.org>
wrote:

John Fields wrote:

On 23 Oct 2004 15:45:34 GMT, Ian Stirling <root@mauve.demon.co.uk
wrote:


Frank Bemelman <f.bemelmanx@xs4all.invalid.nl> wrote:
snip
If faced with two wires of the same colour that you're making into a loose
hookup.
Tie a knot in one wire at each end.
For DC, knot=naught=0V.


---
I've always used "knot=hot".


dont you think "knot hot" is a more accurate description for 0V?

---
Know.

--
John Fields

 

[Rich Grise]

On Wed, 27 Oct 2004 13:38:43 +0000, Bob Stephens wrote:

This wasn't Darwin award material but it was dumb: We had an older
technician who wasn't all that comfortable with new-fangled stuff. We asked
him to mount some printed circuit boards securely in metal enclosures. And
he did - by drilling several 1/8" holes through the four layer PCB, traces
notwithstanding, and bolting them down...

And you hand incomprehensible requirements to the janitor?

Is this how you demonstrate your superiority?

Thanks,
Rich

 

[Rich Grise]

On Wed, 27 Oct 2004 13:40:53 +0000, Bob Stephens wrote:

On Wed, 27 Oct 2004 21:00:45 +1300, Terry Given wrote:

John Fields wrote:

On 23 Oct 2004 15:45:34 GMT, Ian Stirling <root@mauve.demon.co.uk
wrote:


Frank Bemelman <f.bemelmanx@xs4all.invalid.nl> wrote:
snip
If faced with two wires of the same colour that you're making into a loose
hookup.
Tie a knot in one wire at each end.
For DC, knot=naught=0V.


---
I've always used "knot=hot".


dont you think "knot hot" is a more accurate description for 0V?

Cheers
Terry

Well thanks guys. Now I'll never remember which is which.

Have you seen that Harry Anderson gag?
"Knot here? Not here! Knot here! ... Watch!..."

Cheers!
Rich

 

[Frank Bemelman]

"John Fields" <jfields@austininstruments.com> schreef in bericht
news:i3fln09uv3cl5ai5g9bihoo17uh5bejnp5@4ax.com...

On Sat, 23 Oct 2004 21:29:42 +0200, "Frank Bemelman"
f.bemelmanx@xs4all.invalid.nl> wrote:

"John Fields" <jfields@austininstruments.com> schreef in bericht
news:ln4ln01f7vmnsu30scmdpt991eud31g6c3@4ax.com...
On 23 Oct 2004 15:45:34 GMT, Ian Stirling <root@mauve.demon.co.uk
wrote:

Frank Bemelman <f.bemelmanx@xs4all.invalid.nl> wrote:
snip
If faced with two wires of the same colour that you're making into a
loose
hookup.
Tie a knot in one wire at each end.
For DC, knot=naught=0V.

---
I've always used "knot=hot".

--

The two of you would make a nice team

---
As circuit breaker testers?^)

--

I was more thinking about large capacitor banks

Hmm, knot-hot, know-how.

--
Thanks, Frank.
(remove 'x' and 'invalid' when replying by email)