Electronics Forum / Equipment / March 2005

Do you know any small size, light weight distance sensor with the following
specs;
   * Range : 10cm to 1000cm (10meter )
   * Rate    : 50 Hz (50 measurements/sec)

Anyone have a Manual & Schmatic for this unit???
TIA.
Lubbie

We have an HP8662A and when we go from 118.0000000 Mhz to 117.9999999
the output has some discontinuity during the change. Other frequencies
seem alright within at least 5 Mhz of this value. Does anyone know if
this is a common characteristic of these units or is our unit faulty ?

Noticed that old Fluke meters are selling for $50-$80 whereas
comparable Wavetek meters, same features, sell for $10-$30. Any
suggestions on whether the extra cost of a used Fluke is worth it, over
Wavetek? Also, is the Ideal multimeter really a Wavektek? (Buttons are

I'm wondering if someone out there knows the type of coax used in the
500-series extender #013-055... I'm guessing by looking at the driver
circuitry it would ideally drive 93 ohm coax, but the (totally
unmarked) coax used in the extender has the following dimensions:

We are in need of a relay base for a Hasco 80 amp relay, that mounts on to a
Weidmuller t35 din rail...any ideas?
Thanks

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=7501817031
Powers four monitors from one video output.  Great for business display,
classroom, or burn in repair jobs!

My friend makes DVD of episodes he records off of TV. They play fine on his
DVD burner/player in his PC.
When I borrow the discs, they frequently (not always) come to a grinding halt
in my Mac (using DVD Player app). When I put them in my commercial,

After pricing stereo microscopes and not wanting to spend $400+ And after
buying 5 or 6 little 1x,2x,4,5, magnifying lens I was wondering if there was
a way to construct a cheap stereo microscope.  It doesn't have to be stereo.
It just needs to be 10-20x power and about 5 inches ...

I need a low power data module that operates on vhf or uhf for short
range data transfer (less than 300 feet). I know there is a company
that makes the inexpensive transmit and receiver modules (that are
already type accepted). But, can't remember the name of the company.

I got this B&K 290 multimeter at a garage sale. It needs a little
calibration. Most of the adjustment pots are marked but its not intirely
clear how they are used. One pot mounted on the range switch is not labled.
Anyone have the calibration instructions for it?

Is there a repair tool that you can put a IC chip into or use a clip on
jumper to connect to the device that will tell you what the chip is and if
the chip is working or not.  I have one of those old HP comparators but that
has a lot of limits.  I would like something a little ...

 I've got a Tektronix 2236 Oscilloscope that has a delayed-sweep feature
in which an intensified portion of the A sweep is magnified and displayed
on the B sweep after a specified delay. This feature is shared by other
Tek 2200 series scopes like the 2235. But in the case of the ...

I wonder if anyone still uses these for anything? I just came across a huge
box of octal plugs molded into what looks like thick plastic squares:
http://dimensional.com/~melissa/photos/octal.jpg

It followed me home from the Tulsa  hamfest, made for Simpson by Metrawatt
in Nurnberg, Germany July 1972.  It's the first one I've ever seen.  It's a
bridge for measuring CLR and has 2 inputs on the back for plugging in an
external source. I wonder how high the external source can ...