audio recording on IC -help wanted

"therepairman" <ubet@chocolatetownusa.com> wrote in message
news:er2us0tm1vl47875sneq0qm9as39i0d6ee@4ax.com...
I have a large volumn of ICS, new and removed from working chassis.

If Interested please contact me for pricing.
Please remove the "REMOVETHIS" prior to
emailing me
Click to expand...
When you do this in this _discussion_newsgroup_ on occasion, people
might not complain. But it's RUDE to post For Sale posts on a
continuing basis, and othere get damn sick and tired of it. This is NOT
the place for continual FS or FA posts!
 
"Watson A.Name - "Watt Sun, the Dark Remover"" wrote:
"therepairman" <ubet@chocolatetownusa.com> wrote


I have a large volumn of ICS, new and removed from working chassis.

If Interested please contact me for pricing.
Please remove the "REMOVETHIS" prior to
emailing me


When you do this in this _discussion_newsgroup_ on occasion, people
might not complain. But it's RUDE to post For Sale posts on a
continuing basis, and othere get damn sick and tired of it. This is
NOT
the place for continual FS or FA posts!
Click to expand...
That's a bit harsh isn't it? This is the only post under this nym ever
made in this group, hardly qualifying as a "continuing basis". Should
Kristy have listed them on e-bay and then allowed you to tell us about
the auction, or are they not antique enough yet? ;-)
 
I wish I had Watson A.Name - "Watt Sun, the Dark Remover"'s angel
Today, many of the newer people would ignore the commercial stuff, but
if ignored, it gets totally out of hand. Like the saying, "Evil
flourishes when good men do nothing." Commercial posts are spam, and I
hate spam! And I will not allow evil spam to flourish.
Click to expand...
Use the filters in your newsreader, then. Ah... you use Outlook (Out-Of-
Luck) Express, so you don't have decent filters, then.
--
Chaos MasterŽ, posting from Canoas, Brazil - 29.55° S / 51.11° W

"Now: the 3-bit processor, with instructions:
1. NOP - does nothing, increase PC.
2. HLT - does nothing, doesn't increase PC
3. MMX - enter Pentium(r) emulation mode; increase PC
4. LCK - before MMX: NOP ; after MMX: executes F0 0F C7 C8
5. HCF - Halt and Catch Fire"
 
"Robert Baer" <robertbaer@earthlink.net> wrote in message
news:41D52E1A.359E4A00@earthlink.net...
Ahh, where would we be without Robert watching over our welfare ??
Click to expand...

--
Regards ..... Rheilly Phoull
 
"Michael" <NoSpam@att.net> wrote in message
news:41D5905A.25CCA1AB@att.net...
Looking for specs. on HY51C4256S-10 This is an old DIP RAM chip.
I tried the usual suspects including DataSheetArchive.com but no joy.

If I can't find this particular chip, is there a newer, compatible
chip? I have an old printer that would benefit from a few more megs
of
RAM.

Tnx,
Michael
Click to expand...
Last week I tossed out a couple AST Ram 3000 cards with a meg of them on
each board. Sorry.
 
100ns 256Kx4 DRAM. Many SVGA cards of early 1990s vintage used these
chips. For example if you look at Trident 8900 or 9000 ISA SVGA cards
you will likely find some to scavenge.
 
Watson A.Name wrote:

(stuff)
Click to expand...
I wasn't aware these sites got bogged down, so you raise a good point.
This was the first I even knew these sites existed, so I just wanted to
check them out and add one or two to my bookmarks list.

Also, I'm a little surprised that one of these sites doesn't have data
for something as common as a 1N4148 diode.
 
<redbelly98@yahoo.com> wrote in message
news:1104605950.440270.249750@z14g2000cwz.googlegroups.com...
Watson A.Name wrote:

(stuff)

I wasn't aware these sites got bogged down, so you raise a good point.
This was the first I even knew these sites existed, so I just wanted
to
check them out and add one or two to my bookmarks list.

Also, I'm a little surprised that one of these sites doesn't have data
for something as common as a 1N4148 diode.
Click to expand...
Well, most techs who've worked around them know that you can use a
1N4148 or a 1N914 in just about any place that needs a diode that will
handle a few mA and a few dozen volts, like detectors, etc. The specs
are not really important unless it's high VHF or UHF. About the only
thing I've found recently were some BAV21 diodes on Ebay, which are
halfway between a 1N4148 a 1N4004 rectifier.
 
2SC3788
All Jap transistors are 2S then followed by the letter
and number you see.

"Tomahawk" <Thomas.Hawk@nospam.com> wrote in message
news:g6CBd.9062$Of5.6332@nntpserver.swip.net...
Hi,

Does anyone know what component is this (with "C3788 E 3E" written
on
t -see picture -) ?
Component probably used as thermal regulation for MOS (behind), but
I
couldn't find datasheet (for replacing purpose).

Thank for reply.
Click to expand...
 
Watson, Graham, and datasheetarchive administrator,
Thanks for the carifications.
 
Funny, I was just looking for this info myself. The best I could do was to
find the pinout. I have a tube of these. Here's the details:

Samsung DRAM, 256Kb, 1-Bit, Page Mode (120 ns), DIP16



41256 +---\/---+ 1 -|A8 gnd|- 16 2 -|Din /CAS|- 15 3 -|/WR Dout|- 14
4 -|/RAS A6|- 13 5 -|A0 A3|- 12 6 -|A2 A4|- 11 7 -|A1 A5|- 10
8 -|Vcc A7|- 9 +--------+I have a spare tube of these for trade if
anyone needs them.Mark

"Michael" <NoSpam@att.net> wrote in message
news:41D5905A.25CCA1AB@att.net...
Looking for specs. on HY51C4256S-10 This is an old DIP RAM chip.
I tried the usual suspects including DataSheetArchive.com but no joy.

If I can't find this particular chip, is there a newer, compatible
chip? I have an old printer that would benefit from a few more megs of
RAM.

Tnx,
Michael
Click to expand...
 
redbelly98@yahoo.com wrote:
Watson, Graham, and datasheetarchive administrator,
Thanks for the carifications.
Click to expand...
And please keep up a very good job...

---
******************************************************************
* KSI@home KOI8 Net < > The impossible we do immediately. *
* Las Vegas NV, USA < > Miracles require 24-hour notice. *
******************************************************************
 
It's nice that you've got a tube of 41256's for trade, but the chip the
OP posted about is "HY51C4256S-10" which is a Hyundai 100ns 256Kx4 fast
page mode DRAM, DIP20 package I believe.
 
Hi Fred

thanx fore replying!

You don't need the sum frequency components for QPSK demodulation- so
why would you want to "retrieve" them? And what are you using to
"retrieve" them anyway?
Click to expand...
I got the idea from this link:

http://www.maxim-ic.com/appnotes.cfm/appnote_number/686

I can't get the waveform as shown in Figures 3 and 4 on the scope.I intend
to pass this waveform thru a LPF (as suggested by the article) to recover
the logic levels.

You mentioned that I don't need the sum frequency components (you meant the
double freq component?) for demodulation, could you please explain the
alternatives?

thanx again!
kw
 
Robert Baer wrote:

John Larkin wrote:

The real precision multipliers are duty-cycle modulators. But slow.

Or, um, motor-driven pots.

John


Motor driven MaryJane? To get away from the Feds?
Click to expand...
Old analog computers used servomotors driving potentiometers
for slow multiplication. Slow, but good accuracy.

There are mixing consoles today which do this.

Photoresistive photocells can also be used as
multipliers.

John Nagle
 
Not your device, but maybe this will help?

http://rocky.digikey.com/WebLib/Omron%20Web%20Data/E2K-C.pdf

--
....The Bit Eimer NAR 84054 L0
"My goal in life is to be the kind of person my cat thinks he is"
[remove keinewurst and reverse letters in domain to email me]
--------------------------------------------------------------


<larwe@larwe.com> wrote in message
news:1104461870.490757.51430@c13g2000cwb.googlegroups.com...
I've been given a sample Honeywell capacitative proximity sensor by a
client. He wants me to build a small micro-based project to interface
with it. The sensor is shipped in a bag labeled "992AA12AN-A2", and the
documentation for "992 series" sensors consists of four letter-sized
sides, most of which are multilingual translations of warnings and
mechanical specs. The electrical documentation supplied with this
sensor is a quarter-page and not very meaningful to me. I've
photographed it at http://www.larwe.com/honey.jpg - sorry for the nasty
photo, my scanner is being recalcitrant.

The device has a blue wire, a brown wire and a black wire. Looking at
those diagrams - I presume they relate to different versions of the
sensor - I assume that the blue wire is supposed to be +ve, the brown
is -ve, and the black is output. But when I connect a 10VDC supply and
a scope, all I see on the output is 60Hz hum. I added a 500 ohm
resistor between the "output" line and ground, and still all I get is
hum. The device also doesn't seem to be drawing any appreciable
current.

The only info I can find on the web is a bunch of people offering to
sell me the datasheet, and one company saying that they have stopped
selling it and now sell someone else's sensor.
Does anyone know how these devices are supposed to work?
Click to expand...
 
larwe@larwe.com wrote:

I've been given a sample Honeywell capacitative proximity sensor by a
client. He wants me to build a small micro-based project to interface
with it. The sensor is shipped in a bag labeled "992AA12AN-A2", and the
documentation for "992 series" sensors consists of four letter-sized
sides, most of which are multilingual translations of warnings and
mechanical specs. The electrical documentation supplied with this
sensor is a quarter-page and not very meaningful to me. I've
photographed it at http://www.larwe.com/honey.jpg - sorry for the nasty
photo, my scanner is being recalcitrant.

The device has a blue wire, a brown wire and a black wire. Looking at
those diagrams - I presume they relate to different versions of the
sensor - I assume that the blue wire is supposed to be +ve, the brown
is -ve, and the black is output. But when I connect a 10VDC supply and
a scope, all I see on the output is 60Hz hum. I added a 500 ohm
resistor between the "output" line and ground, and still all I get is
hum. The device also doesn't seem to be drawing any appreciable
current.

The only info I can find on the web is a bunch of people offering to
sell me the datasheet, and one company saying that they have stopped
selling it and now sell someone else's sensor.
Does anyone know how these devices are supposed to work?

normally, the Blue is the common, brown is the Vcc and black is the load.
Click to expand...
this depends on what kind you have.
you have the difference of PNP and NPN which indicate in which manner
it works, either it it pulls towards - side of the + side.

in any case the BLACK wire will switch the path as you need in the doc.
 
I'm an administrator at http://www.datasheetarchive.com. We are adding
400,000 extra datasheets in our January 2005 update. Many for rare or
obsolete parts.

Also it's true that our servers have been getting abused by some
users who feel the need to download all 100 gig of datasheets. We have
noticed many datasheets that we have scanned ourselves appearing on
other datasheet sites.

We have also been suffering from denial of service attacks on our
database server. For example running thousands of wildcard queries per
day so the server gets too bogged down or crashes. We are upgrading our
servers and SDSL lines to better cope with this problem.

The security code is a simple measure to prevent automatic ripper
software. It is however quite easy to bypass. We also use log file
analysis tools that check for excessive downloads each hour of the day.
We frequently block IPs and Networks that are abusing our free service.
I know it's a nuisance but it's necessary. If you have any comments
or suggestions for the site please feel free to email them to us.
suggestions@datasheetarchive.com



redbelly98@yahoo.com wrote:
Watson A.Name wrote:

(stuff)

I wasn't aware these sites got bogged down, so you raise a good
point.
This was the first I even knew these sites existed, so I just wanted
to
check them out and add one or two to my bookmarks list.

Also, I'm a little surprised that one of these sites doesn't have
data
for something as common as a 1N4148 diode.
Click to expand...
 
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