audio recording on IC -help wanted

[legg]

On 22 Jun 2005 17:18:15 -0700, 4621vol@volcanomail.com wrote:

Hello,
I am hopeing to purchase some high current diodes and seen this item
on ebay. Can anyone here give me it's specifications. This url will
probable 'wrap around' so you may have to cut and paste it into your
browser navigation text area.


http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=36631&item=4557384034&rd=1&ssPageName=WDVW

Thanking you,

Volume

Ask the seller what's written on the bodies.

Then you might have a chance at tracking down the info.

RL

 

[Watson A.Name - \"Watt Su]

<4621vol@volcanomail.com> wrote in message
news:1119485895.597567.192970@z14g2000cwz.googlegroups.com...

Hello,
I am hopeing to purchase some high current diodes and seen this item
on ebay. Can anyone here give me it's specifications. This url will
probable 'wrap around' so you may have to cut and paste it into your
browser navigation text area.



http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=36631&item=4557

384034&rd=1&ssPageName=WDVW

Thanking you,

Volume

Judging by it's (sic) picture, it has at least a 3/8 inch thread. The
DO-8 package with 3/8 inch thread can handle 150 amps. The industrial
rectifiers that NTE (www.nteinc.com) sells go from 400V up to more than
a thousand.

 

[Watson A.Name - \"Watt Su]

"legg" <legg@nospam.magma.ca> wrote in message
newssekb15qdr8q2k4jdbha964j4l9ha6bl82@4ax.com...

On 22 Jun 2005 17:18:15 -0700, 4621vol@volcanomail.com wrote:

Hello,
I am hopeing to purchase some high current diodes and seen this item
on ebay. Can anyone here give me it's specifications. This url will
probable 'wrap around' so you may have to cut and paste it into your
browser navigation text area.



http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=36631&item=455
7384034&rd=1&ssPageName=WDVW

Thanking you,

Volume

Ask the seller what's written on the bodies.

He already gave that information in tha auction.

Then you might have a chance at tracking down the info.

Just a bunch of numbers. The only thing that might be useful is the W,
which used to mean Westinghouse.

> RL

 

Kathleen Carmody <councilmembercarmody@ci.brooklyn-center.mn.us>
wrote:

Anyone know where to purchase a cellular phone jammer, preferably
stateside.

Sure, just ran across http://cellantenna.com/CJAM/cjam.htm the other
day. Enjoy.

 

"Watson A.Name - \"Watt Sun, the Dark Remover\""
<NOSPAM@dslextreme.com> wrote:

But what I can't figure out is why the elevator at work, which has four
stainless steel walls, fails to stop my cell phone from working.

Look up slot antennas. Any crack in the walls 1/4 wavelength long
will leak plenty of signal.

 

"Jim Douglas" <james.douglas@genesis-software.com> wrote:

The bitch driving next to me at 75MPH on the phone and putting on makeup is
not essential communication! We should start by ripping the Fu*&*NG phone
out of their hands when you can and throwing it as hard as you can.

I have this vision of how you'd increase safety by performing this
operation while driving at 75MPH, but I've been watching too much
Danger Mouse. 8*)

 

"L." <heykoolaideman@juice.com> wrote:

"Jim Douglas" <james.douglas@genesis-software.com> wrote:
The bitch driving next to me at 75MPH on the phone and putting on makeup
is
not essential communication! We should start by ripping the Fu*&*NG phone
out of their hands when you can and throwing it as hard as you can.

The FCC posted yesterday to their news bulletin that Cell Phone jammers ARE
ILLEGAL IN THE U.S.

Which is why Jim doesn't want to do it that way, he wants to do the
Action Hero thing, which is not under the juristiction of the FCC.
8*)

 

[L.]

<William P. N. Smith> wrote in message
news:j8e2c157ppo05r8j0uqiqejak1u3s68lrt@4ax.com...

"Jim Douglas" <james.douglas@genesis-software.com> wrote:
The bitch driving next to me at 75MPH on the phone and putting on makeup
is
not essential communication! We should start by ripping the Fu*&*NG phone
out of their hands when you can and throwing it as hard as you can.

I have this vision of how you'd increase safety by performing this
operation while driving at 75MPH, but I've been watching too much
Danger Mouse. 8*)

The FCC posted yesterday to their news bulletin that Cell Phone jammers ARE
ILLEGAL IN THE U.S.

L.

 

[Mike Harrison]

On Thu, 30 Jun 2005 15:43:56 +0100, "John Mitchell" <j.b.mitchell@qmul.ac.uk> wrote:

Hi,

I would like, as part of a larger system, to implement a 32bit synchronous
binary counter. Clock frequency will exceed 100Mhz (200 would be nice)

Any hints as to which chip familly would suit??

Thanks

John

Xilinx XC9536XL CPLD will do this width and speed in one chip for a dollar or so.

 

[Jon]

Mark,
You may not need a "pulse rated" zener. Most zener data sheets give a
parameter call "transient thermal impedence". This parameter is
expressed as a family of curves. It shows the equivalent thermal
impedance (resistance) taking into account both the duty cycle and the
repetition rate of the applied power. For an example of a set of
transient thermal imnpedance curves, go to:
www.onsemi.com/pub/Collateral/MDC3105-D.PDF
For some devices, only a single curve will be given. This curve will
be for the case where the pulse repetition time is much greater than
the thermal time constant of the device.
..
Once you pick the appropriate value off the curves, you can calclate
the junction temperature rise using the formula:
..
Delta T = Rt*Power.
..
Where:
Delta T is the junction temperature rise above athe ambient
temperature
..
Rt is the transient thermal impedance from the curves
Power = AVERAGE power dissipated in the Zener. (Sorry about the
shouting
..
You must also observe the Maximum current rating of the zener.

 

[Jon]

Use of a diode will result in a slower decay of a magnetic field.

 

There is a standard carry propagation scheme for fast synchronous
counters, usually shown somewhere in the data sheet, which gives the
same performance for two or more than two integrated circuits - the
chips have two count enable inputs, and one is driven by the first IC
in the stack while the other is daisy-chained.

A couple of the years ago the MC100E016 8-bit counter chip could be
guaranteed to count at 500MHz when stacked up in this way to make 16-,
24- or 32-bit counters. After that you might have to start worrying
about fan-out. More recent ECLinPS parts (referred to elsewhere in this
thread) can go faster.

----------
Bill Sloman, Nijmegen

 

"Don" <someone@somewhere.net> wrote:

From what I have read, RGB video cables are 75 ohm impedance. However, I
have never seen a recommendation for the RG number (or other qualifier). I
am looking for a good quality cable as we want to go about 15ft with the
signal. (Moving a monitor from one part of our lab to another.)

If it's just analog video you probably don't need a lot of bandwidth,
just about any RG59 will do. NTSC not only tops out around 3.58MHz,
but corrects amplitude with the color burst...

 

[Roger Hamlett]

<William P. N. Smith> wrote in message
news:k7lcd15naa5uhekiv2sicbs03lppud22st@4ax.com...

"Don" <someone@somewhere.net> wrote:
From what I have read, RGB video cables are 75 ohm impedance. However,
I
have never seen a recommendation for the RG number (or other qualifier).
I
am looking for a good quality cable as we want to go about 15ft with the
signal. (Moving a monitor from one part of our lab to another.)

If it's just analog video you probably don't need a lot of bandwidth,
just about any RG59 will do. NTSC not only tops out around 3.58MHz,
but corrects amplitude with the color burst...
RGB, implies this is not NTSC...

Depending on the resolution, bandwidth can be significant. 300MHz for
modern large monitors. Most cable maufacturers will offer 'triple co-ax',
or 'triple + sync', and for a PC monitor, it'll be the latter that is
needed.
How careful you need to be, will depend massively on the monitors
resolution, and sync rate.

Best Wishes

 

"Roger Hamlett" <rogerspamignored@ttelmah.demon.co.uk> wrote:

RGB, implies this is not NTSC...

Sorry, last time I did video over coax it was mostly NTSC, either RGB,
Y/C, or Composite. Could be anything, the OP probably needs to tell
us what bandwidth he needs, though 15 feet isn't too significant,
connector losses will probably swamp any differences in cable type
over that kind of distance.

 

[Sammy-Jo]

"Sammy-Jo" <no_thanks@mail.com> wrote in message

I am looking to use a 1800 MHz Duron rather than 1600 MHz
Duron.

The PSU is fairly good but not particularly powerful, so
I want to be careful that it can supply enough power for
the processor.

The specs say that the "Typical Power Dissipation" for
the 1.6 Duron is 48 W and for the 1.8 Duron it is 53 W.

QUESTION: Can someone tell me at what voltage is the
current for the extra 5 W power going be drawn from the
PSU? Is it 12V?


Postscript. The specs also say:
"Maximum Core Amperage" of each processor is 38 Amps and the
"Max Power Disssipation" of each processor is 58 W.

On Mon 18 Jul 2005 19:21:39, John Smith wrote:
<news:dbgrvj$dp2$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com>

Depends what board but usually on socket A boards its the 5v
line

Smiffy

Weird. Can I double check with you to make sure of what you are
saying about the extra power being needed on the 5V line.

I have read the theory but I have no practical experience of this and
wanted to know of someone who had actually checked it out in real
life.

------

I read that the fast Durons (Applebreds) are like Thoroughbred B
Athlons. See http://fab51.com/cpu/guide/opn-xp-e.html#a-bred

The cpu entry at the bottom of page 7 of this document suggests that
the voltage is 12V.
<http://www.amd.com/us-
en/assets/content_type/white_papers_and_tech_docs/26003.pdf>

Also this web page http://takaman.jp/D/?english suggests that
different power *Athlons* vary by the amount of 12V they use.

 

[Watson A.Name - \"Watt Su]

"Sammy-Jo" <no_thanks@mail.com> wrote in message
news:96986D67DAFC671F3M4@66.250.146.159...

"Sammy-Jo" <no_thanks@mail.com> wrote in message

I am looking to use a 1800 MHz Duron rather than 1600 MHz
Duron.

The PSU is fairly good but not particularly powerful, so
I want to be careful that it can supply enough power for
the processor.

The specs say that the "Typical Power Dissipation" for
the 1.6 Duron is 48 W and for the 1.8 Duron it is 53 W.

QUESTION: Can someone tell me at what voltage is the
current for the extra 5 W power going be drawn from the
PSU? Is it 12V?


Postscript. The specs also say:
"Maximum Core Amperage" of each processor is 38 Amps and the
"Max Power Disssipation" of each processor is 58 W.


On Mon 18 Jul 2005 19:21:39, John Smith wrote:
news:dbgrvj$dp2$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com

Depends what board but usually on socket A boards its the 5v
line

Smiffy


Weird. Can I double check with you to make sure of what you are
saying about the extra power being needed on the 5V line.

I have read the theory but I have no practical experience of this and
wanted to know of someone who had actually checked it out in real
life.

------

You should be more concerned as to whether or not your motherboard will
support the faster chip. There are other more important considerations,
such as bus timing, memory, BIOS, and peripherals. If the MoBo supports
the faster chip, then the power usage is not one of the more important
considerations; it will be taken care of by the onboard Dc-Dc
converters.

 

[Sammy-Jo]

"Sammy-Jo" <no_thanks@mail.com> wrote in message

I'm looking to use a 1800 MHz Duron rather than 1600 MHz
Duron.

The PSU is fairly good but not particularly powerful, so
I want to be careful that it can supply enough power for
the processor.

The specs say that the "Typical Power Dissipation" for
the 1.6 Duron is 48 W and for the 1.8 Duron it is 53 W.

QUESTION: Can someone tell me at what voltage is the
current for the extra 5 W power going be drawn from the
PSU? Is it 12V?


Postscript. The specs also say:
"Maximum Core Amperage" of each processor is 38 Amps and the
"Max Power Disssipation" of each processor is 58 W.


On Mon 18 Jul 2005 19:21:39, John Smith wrote:
news:dbgrvj$dp2$1@nwrdmz02.dmz.ncs.ea.ibs-infra.bt.com

Depends what board but usually on socket A boards its the 5v
line

Smiffy

"Sammy-Jo" <no_thanks@mail.com> wrote in message

Weird. Can I double check with you to make sure of what you
are saying about the extra power being needed on the 5V line.

I have read the theory but I have no practical experience of
this and wanted to know of someone who had actually checked it
out in real life.

On Tue 19 Jul 15:22, Watson - "Watt Sun, the Dark Remover" wrote:

You should be more concerned as to whether or not your
motherboard will support the faster chip. There are other more
important considerations, such as bus timing, memory, BIOS, and
peripherals. If the MoBo supports the faster chip, then the
power usage is not one of the more important considerations; it
will be taken care of by the onboard Dc-Dc converters.

There's definitely no problem at all with the mobo's support. And
power usage, as you rightly say, will be handled by onboard
electronics.

OTOH my concern is the power consumption and question of what is
drawn from the PSU: does the Duron 1800 draw its extra current at
12V (or what volatge) when compared to the Duron 1600?

 

[John Smith]

Hi
No,same as the Duron 1600,in fact there is so little difference between
the two in terms of current reqs that its not worth worrying about.
What motherboard do you have?
Smiffy

There's definitely no problem at all with the mobo's support. And
power usage, as you rightly say, will be handled by onboard
electronics.

OTOH my concern is the power consumption and question of what is
drawn from the PSU: does the Duron 1800 draw its extra current at
12V (or what volatge) when compared to the Duron 1600?

 

[Wes Newell]

On Tue, 19 Jul 2005 17:03:50 +0100, Sammy-Jo wrote:

OTOH my concern is the power consumption and question of what is
drawn from the PSU: does the Duron 1800 draw its extra current at
12V (or what volatge) when compared to the Duron 1600?

The CPU draws it's power form the MB. Where the MB gets its power for the
cpu will depend on which MB you have. IOW's the Mb Takes power from the
PSU and converts it to the power required for the cpu, which I think is
2.5v for vccca. vcore for the 1800 Duron will be between 1.6v and 1.65v.

--
KT133 MB, CPU @2400MHz (24x100): SIS755 MB CPU @2330MHz (10x233)
Need good help? Provide all system info with question.
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