Please Email any information to: lfky…@prodigy.com

I need to find spec sheet information on the following chips.  Any
information on best place to locate them or any other information
would be greatly appreciated!!  Is there a "bible" for cross
referencing chip numbers?  Maybe a backwards compatable ECG number
reference guide?  On CDrom??  Please help if you can!  Thanks in
advance!

VIDEO IF / IF AMPLIFIERS
-=-=-=-=-=-=-=-=-=-=-=-=
TDA-6048
TDA-6051
TDA-6052
TDA-5950
TDA-5930
TDA-5940
-all 20 pins I think-

*8pin "221-263"

*Zenith "221-464-01"

Hello!

We’ve recently changed the URL to our ftp and web site.  The new URL’s
are:

ftp://itutech.com          Anonymous FTP
http://www.itutech.com        World-Wide-Web site

Please update your links to reflect these changes.

Our ftp and web site features files on Electronics, Amateur Radio, PC
interfacing, PIC programming and other programs of interest to the
electronics/computer enthusiast.  Please feel free to upload your
contributions in the incoming directory.

Thanks!

Chris
———————————————————————-
Chris B. Sakkas  (ch…@itutech.com)    http://www.itutech.com/
ITU Technologies (sa…@itutech.com)    ftp://itutech.com/
(513) 574-7523     VISA/MC Accepted
*** Complete PIC programming packages starting at only $29! ***
*** See our web page or e-mail us today for more info! ***

  I need assistance to build a circuit that will interface two Telco lines,
one I will call in on (from lets say a pay telephone) and the second I wish
to bridge to the first to make an outgoing call on. The problem is:

   1) I need to isolate the "incoming line" from the "outgoing line" so as
not to blow up the CO. (If for some reason the "outgoing line" gets a call I
dont want it voltage to "feed back" into my "incoming line".)

   2) I need to latch a relay from the "incoming lines" ring voltage (110
vac / 30 cps) to pick up & seize the "outgoing line" and hold it till the
"incoming line" is dropped (when I hang up from the outside phone).

   I would VERY MUCH appreciate someone helping me to design this gadget.
Its for my own use and I would be more then happy to explain my full
application to anyone who may be kind enough to help & draw a workable
schematic I can follow to build one.

   I seldom get to read this group so PLEASE E-mail an answer or
better yet PLEASE call me (toll free) to discuss. I can be reached at this #
anytime !!!!

   MANY, MANY, MANY thanks !!!
   …..and a great holiday to all !!!!

Mike Glaser
1-800-606-8869
(New York)

Hello,
I recently got something called a ScriptWriter, made
by Data Entry Systems. It is a clipboard-sized system with a
digitizer(?) instead of paper, and 2 lines of LCD up top.
Inside is a Zilog Z64180, some PROMs and RAM, and batteries.
Its only connection to the world is a 4 pin connector.
The PROMs were (C) 1988, so it can’t be older than that…

As part of a load of junk that a company was throwing out,
it came w/o docs, cables or stylus, so
I wonder if anybody has seen/heard of it.

Specifically, does it need a stylus like that used with
ordinary digitizers, or what?
And how does it communicate whatever you enter into it?
Is Data Entry Systems still around?

Any information would be much appreciated.

Stellan

My wife has a pottery wheel which was built in the ’70s.  Unfortunately
the speed controller burned out.  I’m now looking for an inexpensive
($50-100) replacement.  The motor is 0-100DC, 7amps.  Surce is obviously
120AC.  Any ideas as to companies which would sell such a thing?

Rasjad
ras…@pacifier.com

–
Rasjad
Vancouver, Washington

Measure once, cut once…twice…Now where did I put that board stretcher…

da…@opq.se@ wrote:

: Hi!
:
: Is anyone running PALASM under OS/2?
: If so what settings are you using?
: I have some problems in getting PALASM to run properly under the OS/2 platform.
:
: Please mail me your idea’s, I have seldom time to look in these newsgroups!
:
: Regards
:
: David Olsson

Please do not cross-post requests on the entire sci.electronics hierarchy.
—
————————————————————————
Andrew Mitz, Biomed. Eng., National Institutes | Opinions are mine alone
of Health Animal Center, Poolesville, MD       | a…@helix.nih.gov      
————————————————————————

For sale: 2.4 watt Nd-YAG laser with new rod, lamps and seals. Model C-95 (CVI
or now Santa Fe Laser). The beam is 1064nm and multi-mode. Requires 115vac at
18 amps and 1.5 gallons of water/min. for cooling. In excellent condition.
$1050 plus shipping.

Laser light show: Omnichrome 532-200 producing 250mW multi-line (blue through
green) mounted on a wooden base with General Scanning scanners (X-Y axis),
General Scanning DX-2000 scanner amplifier/control, Light show controller with
parallel I/O to a PC, full menu driven software with several pre-drawn images.
Will do text and animation. The software can be used with the mouse to draw
patterens on the fly or save for later. The laser also comes with the power
supply, umbilical and cooling fan. The tube has 135 hours on it.

$4000 plus shipping (OBO)

-=-= Wes =-=-

Hi,

My group is looking for a device that will allow input to Mitsubishi 35in
monitor from a number of computers. We would like to have a ‘box’ where
all these computers will be connected to and a switch on it that would
pick the output to the monitor. We have several IBM and SGI workstatons
that have RGB output, PC and a Power Mac. If you have or know someone who
does these devices, please let me know.

Thanks,

–
Srdan Simunovic
——————————————————————
Oak Ridge National Laboratory           email: simunov…@ornl.gov
P.O. Box 2008, MS-6140                  phone: (423) 241-3863
Oak Ridge, TN 37831-6140                fax:   (423) 574-4839
——————————————————————

Hi to all:

        Well, I have two older instruments:

          – Counter model number 1191-B , this is a general use counter
            using nixie tubes.

          – Impedance Bridge, model number 1656, this is portable and use
            D type bateries.

                        Both are "General Radio"
                                  ————-

        This two instruments, I bought it in a second hand store and I
don’t have the service manual that I need to repair (or calibrate) them.

        If somebody in the world, have or know where I could find this
manuals, please, let me now or write to me at:

                 aguer…@araucaria.cec.uchile.cl

or to
                Rodrigo.Gessw…@chilnet.cl

        Thank and best regards…..
        Bye

WANTED tiny used or no good circuit boards
d…@earth.execpc.com