Electronics Forum / Equipment / March 2004

 I am looking to buy a Data I/O 29b with Unipak 2B kit, as well as an
EPROM UV eraser. If anyone has these for sale please let em know.
Thanks!
Always,

Anyone know where to find specs on parts made by Midwest Coil & Transformer?
Specifically looking for info on a vertical output transformer mfg 4th week
1973 probably from a Heathkit TV, p/n 51-158, 8 wires paired as follows
(checking with ohm meter):

I just bought a Tektronix 465B on eBay.  It's my first scope, and it
seems to be in pretty good shape - good physical condition, DM44 option,
timebase slightly off but I'm sure that can be easily corrected by
following the service-manual procedures.

Watson's Weston Meter Mystery
Help me solve this Weston Meter Mystery.  I got this good ol' Weston
Voltmeter at the Antique Telephone Collectors Ass'n show this weekend,
and it works great on the 3V range.  I want to do a little modifying.

Still looking for a source of the above in the USA. Posted the same thing
last June and got the following links;
http://www.rapidelectronics.co.uk/sensors_61-0430.htm
http://www.semitec.co.jp/english/indexe.htm

I have an old (from 1984) GPIB-PC interface card from National
Instruments, an 8-bit ISA interface card to the IEEE-488 / GPIB / HPIB
instrumentation bus.  I'm wondering if anyone out there has the software
drivers (for DOS) to use the card and/or information on talking to it from

    Does anyone know where I can find an antenna for this device
advertised on eBay?
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=3082178579&category=4668
I really dont want to bid on it and find I cannot use the thing in the

The controller has gone out on my station. The LED shows random numbers and
the temperature does not control. The control board is a ceramic hybrid
type. Can these be repaired, or should I just replace it? thanks

--------------------------------
INTESTINAL BLEEDING INJURY AGAIN
WITHIN 2 DAYS
--------------------------------

All,
Here is yet another project
create a load to test and discharge a 12v 5amp hour battery
I came down to this:

I have a very excellent, low hours 2465B that just goes south every few
hours. The horizontal channel and/or sweep works sometimes for a few minutes
to several hours, then  drifts off screen. Sometimes it happens almost
immediately at startup. Freeze mist on the horizontal output IC

Can anyone send me a 4-bit binary divider circuit in this email :
abce98@netvision.net.il
I must make this homework for my university and i
am late.

I have a Tek 2235 scope (military version) on which I suddenly lost the
A channel.  I get a nice flatline trace for channel A.  The B channel
works fine.
I need to troubleshoot this but was looking for suggestions as to where

What is a surefire way to destroy a 240 - 6v transformer safely without
leaving any external marks?

I have a curbside find...chassis of a Heathkit GR-681 TV.  Pretty well
stripped, but this on had the transformers, and lots of caps, resistors and
other small goodies.  Also had the HV supply (this is surplus as far as I'm
concerned, read on).