MessageView 421F schematic

[ratko]

Derekwrote:
hello,

please mail me at ds_be@pandora, I have such a LA with both system
and util
disk and am willing to send the image to you.
Best Regards,

Derek


"SP6_Darek" <marantz1@box43.pl> schreef in bericht
news:d6k7p6$jpp$1@nemesis.news.tpi.pl...
Help me !

I'm urgently looking for software for Logic Analyzer Fluke/Philips
PM3585

Few days ago I've received analyser from disposal firm, and floppy
disks
were propably trashed. And now i've got a problem.

Great thanks to the people of good will.
Darek

:lol: :lol:

[/QUOTE]

http://www.HardwarePlug.com - Gadgets, Computer Hardware and Electronics Forums

 

[kyban]

Zach
Just got a 3232 myself, but no cable or manual. Did your come with a
cable? What did you use for a 24v power supply? Was there a manual?
Have you found a source for same?

Thanks

Bob

 

[Donha]

J.T.Kaos,

I'm interested in the Tektronix 502A Dual beam Oscilloscope that you
posted in Talkabout. Do you still have it? If it is still available I
will send more information about myself and what I would use it for.

Thanks,

Don

 

[JW]

On Wed, 14 Sep 2005 01:08:23 -0400 "Donha" <donaldha3@aol.com> wrote in
Message id:
<fdeede1cc0fd4ec0574b0f3bfe24f829@localhost.talkaboutelectronicequipment.com>:

J.T.Kaos,

I'm interested in the Tektronix 502A Dual beam Oscilloscope that you
posted in Talkabout. Do you still have it? If it is still available I
will send more information about myself and what I would use it for.

Thanks,

Don

You realize that the message you're responding too was from June 2004,
yes?

 

[Robert Baer]

JW wrote:

On Wed, 14 Sep 2005 01:08:23 -0400 "Donha" <donaldha3@aol.com> wrote in
Message id:
fdeede1cc0fd4ec0574b0f3bfe24f829@localhost.talkaboutelectronicequipment.com>:


J.T.Kaos,

I'm interested in the Tektronix 502A Dual beam Oscilloscope that you
posted in Talkabout. Do you still have it? If it is still available I
will send more information about myself and what I would use it for.

Thanks,

Don


You realize that the message you're responding too was from June 2004,
yes?
He needs to *scope* it out...

 

[Too_Many_Tools]

I should have mentioned that the set needs to be battery powered.

TMT

 

[afiggatt]

RobH wrote:

"Too_Many_Tools" <too_many_tools@yahoo.com> wrote in
news:1129945105.293877.127410@g49g2000cwa.googlegroups.com:

I am looking to buy a PORTABLE HDTV set.

Are there any available...I can't seem to find anything but LARGE sets
that are anything but portable.

Also I would like to hear anyone's experience with a HDTV set that is
being used while traveling in a RV.

Thanks

TMT

Look on Amazon. These are all under $500.

Sharp LC-13B6U-S 13" AQUOS HDTV-Ready
Zenith Z15LA7R 15" Flat Panel HD-Ready LCD TV
Philips 15PF8946 15" HDTV-Ready Flat Panel TV
Sharp Aquos LC-15B9US 15" HD-Ready LCD

"HD-Ready" means HD TV sets without ATSC (or QAM) tuners. The OP
didn't say, but I suspect that TMT is looking for a portable HD TV with
an ATSC tuner to pick up the local digital broadcast stations. I have
not heard of any such portable HD TVs with digital tuners on the market
yet. If the TV is for an RV, the only option may be to go for a portable
HD TV (15" widescreen is damn small however) and buy a ATSC tuner set
top box for it, but the ATSC STB will require AC power.

Alan F

 

[dg]

"RobH" <Rob@aol.com> wrote in message
news:Xns96F6D728935EFy8k590k@24.93.43.121...

Look on Amazon. These are all under $500.

Sharp LC-13B6U-S 13" AQUOS HDTV-Ready
Zenith Z15LA7R 15" Flat Panel HD-Ready LCD TV
Philips 15PF8946 15" HDTV-Ready Flat Panel TV
Sharp Aquos LC-15B9US 15" HD-Ready LCD

Not to slam your suggestions, but man is it sad what is being passed off as
"HD". All the sets mentioned are 4:3 AR, the first on the list even has a
native res of 640x480! It seems like such a shame to start with such a
small monitor with low res and then lose so much real estate by displaying
16:9 HD on it. "Pimp my ride" put a 40"+ plasma set in a VW bus, I'd tend
to think a little more on that end of the size spectrum but not so extreme.

--Dan

 

[Tim Williams]

"Keyser Soze" <noreturn@nothere.com> wrote in message
news:_aW8f.6904$BZ5.4384@newssvr13.news.prodigy.com...

The collector current of phototransistors is usually very low, in the
range of 400 to 800 microamps with full illumination. Darlington
phototransistors can switch more collector current but rise and fall
times increase from a few microseconds to several milliseconds.

Odd, my 4N35 says 20mA minimum Ic for approximately 20mA in the LED.

Tim

--
Deep Fryer: a very philosophical monk.
Website: http://webpages.charter.net/dawill/tmoranwms

 

[David C. Partridge]

A very good idea ... if HP don't have a problem.


"Fred Bartoli"
<fred._canxxxel_this_bartoli@RemoveThatAlso_free.fr_AndThisToo> wrote in
message news:43639f92$0$19921$626a54ce@news.free.fr...

"VMI" <VMI@Advalvas.be> a écrit dans le message de
news:4362125d$0$10951$ba620e4c@news.skynet.be...
David C. Partridge wrote:
Service manual anyone? Powers up but permanent display of 12.0002
which
is
obviously an error code/indication of ADC failure or similar.

Thanks in advance
I have one, but it's BIG, 20Meg zipped.
How to proceed?

Why not uploading it on the BAMA ftp servers?

bama.sbc.edu/upload

or its mirror

bama.edebris.com/upload


--
Thanks,
Fred.

 

[Jamie]

Tim Williams wrote:

"Keyser Soze" <noreturn@nothere.com> wrote in message
news:_aW8f.6904$BZ5.4384@newssvr13.news.prodigy.com...

The collector current of phototransistors is usually very low, in the
range of 400 to 800 microamps with full illumination. Darlington
phototransistors can switch more collector current but rise and fall
times increase from a few microseconds to several milliseconds.


Odd, my 4N35 says 20mA minimum Ic for approximately 20mA in the LED.

Tim

--
Deep Fryer: a very philosophical monk.
Website: http://webpages.charter.net/dawill/tmoranwms


Hmm, i always thought raise/fall (slew/skew) depending on

how you want to use the lingo? improves on more current
since the miller effects are reduced ?


--
Real Programmers Do things like this.
http://webpages.charter.net/jamie_5

 

Hello fellow Sencore user. Yes, Sencore are out of thier minds with the
prices they charge for probes and such. You call Lance at Choice
Electronics 800-609-0677 You tell him Tony from Telerama Television
told me to call you. I'm telling you Russ, he has the best prices on
Sencor probes. I think he has the scope probes brand new @ $90.00 Give
him a call, he is a hell of a nice guy to deal with.
Tony
uriahsky@hotmail.com wrote:

So I bought a Sencore SC3100 scope on ebay and it didn't come with a
probe. I admit I got caught up with a little auction frenzy and should
have checked into the probe thing first. Do you need a special probe
for these things? Or can you use any scope probe? If any of you know
this could you let me know. Sencore sells them for $158.00 on their
ebay store but I hope I don't have to spend that much on one. Also...

HA2500 owners. Same thing. There are two probes once is just with a
small plug that ends in three clips and one ends in two clips. They
want $68.00 for the three wire one. That is a little bit too much for
three leads and a plug. If someone who owns one of these could you
tell me what the color goes to what pin on the plugs. I will just make
my own.

I really apprecate any and all help.
Thanks
Russ
StateStreetAmusements@hotmail.com

 

[James Sweet]

dkuhajda@locl.net wrote:

The screen aspect ratio has nothing to do with whether a tv is HDTV or
not.

If the tv can display the lines of resolution at the appropriate scan
rate for HDTV, then it is high definition. Just because it may have
bars on the top and bottom, or on the side when displaying a different
aspect ratio has nothing to do with HDTV or not.

I believe the sets he's referring to are called EDTV, they support 480p
which is an improvement over the 480i of NTSC, but nowhere near as nice
as 720p on a HD set.

 

[Lucyfero]

"Joris Dobbelsteen" <joris.dobbelsteen@mail.com> ha scritto nel messaggio
news:dk3e0t.5bo.1@joris2k.ath.cx...

Dear,

I'm looking for some specific switches.

They must be:
(a) Gigabit (probably 5 or 8 ports)
(b) Cheap
(c) Have the posibility to modify them and exploit its features.
(d) Be able to get some docs on how to do this

So far broadcom doesn't provide any documentation, so these switches fail
to be interesting. This included D-Link and Linksys switches.
Vitesse looks like documentation is better available. It seems the SMC
EZGS5 and EZGS8 have vitesse chips.

Would anyone know any good switch that I can use for this?
Probably an evalution board that is not expensive would do, though I guess
these are easily get expensive.

- Joris

Hi,

I was in your situation and at the end I decided for INFINEON (Purple chip).
The chip has 48 FE ports and 2 GBE ports but you can spend the FE ports as
GBE. You do
not need an external processor as Purple has a MIPS embedded.
I have heard that Infineon is in trouble now but the Purple is worth the
try.
If you need info I think the best is "The Switch Book - Rich Seifert".

Regards

Luc

 

[VMI]

Fred Bartoli wrote:

Why not uploading it on the BAMA ftp servers?

bama.sbc.edu/upload

or its mirror

bama.edebris.com/upload


I try to upload it but it dosn't seem to work.

It allways ask for a log on ID and password.
Any help appreciated...

Zilog

 

[VMI]

Hi David,

I managed to upload the file to the bama site.

But now you have it via mail.

Sorry for all the inconvineance...


Marco

 

[Ikke]

On Thu, 27 Oct 2005 06:05:41 -0700, mike <spamme0@netscape.net> wrote:

(Q.1) Will this 350 mA *RATE* of charge be too much for such
cells to take resulting in noticeable adverse effects?

Probably, but more important is the charge termination method.
You can buy 8.5 minute charge cells these days.

Your cells wil live MUCH longer when you charge them at a low rate.

P.

 

[Robert Baer]

mike wrote:

Robert Baer wrote:

Keyser Soze wrote:

"Tim Williams" <tmoranwms@charter.net> wrote in message
news:dCI8f.3990$7s1.1612@fe04.lga...

"Robert Baer" <robertbaer@earthlink.net> wrote in message
news:_yE8f.1180$8c5.717@newsread3.news.pas.earthlink.net...

In effect, charge is being injected in the base.
You now may open the eyes all the way and finish stepping forward.



Ok, so you get a variable knee (i.e., variable Vbe) diode? Kinda
spoils the
useful switching character of a transistor.

Tim


There are a few things that have not yet been mentioned.

Most phototransistors are junction transistor, not field effect
transistors.

This means that they operate on current flow not voltage levels as
are common with FETs.

The rise and fall times of junction phototransistors are determined
by the rate of change of the current through the base-emitter junction.

The collector current of phototransistors is usually very low, in the
range of 400 to 800 microamps with full illumination. Darlington
phototransistors can switch more collector current but rise and fall
times increase from a few microseconds to several milliseconds.

The larger the area of the base is the more sensitive the
phototransistors is. A lager base area means a large base-emitter
capacitance. This sets up two competing goals. Where one would like
fast turn on and off times the emitter impedance should be low, but
to get a large output voltage swing with only 400 microamps of
collector current the emitter impedance needs to be quite large.

One way to manage all these thing is to use a three terminal
phototransistor and establish the base impedance independent of the
emitter circuit.

Keeping the voltage drop across the phototransistor (Vce) low can
also improve rise and fall times and sensitivity to light.



...for example, keep the Vcb zero with an opamp would improve the
risetime by a significant amount.


Would there be any advantage to keeping the Vcb high, smaller Ccb
but let the dVcb/dT be zero??
mike

Zero Vcb tends to zero out a lot of terms; noise, miller effect,

leakage to name a few (i forgot all of them, but i think about 6 moer or
less).

 

[David C. Partridge]

The file you uploaded was not OK as it happens (way too small) - I've
uploaded it OK though as HP3490A.pdf.new along with a small readme.txt.

David
"VMI" <VMI@Advalvas.be> wrote in message
news:436663fc$0$29910$ba620e4c@news.skynet.be...

Hi David,

I managed to upload the file to the bama site.

But now you have it via mail.

Sorry for all the inconvineance...


Marco

 

Thanks, I will do that. I guess you need something somewhat special
for the SC3100. My regular probe from my other scope doesn't give DC
readings.
Thank you
Russ