Electronics Forum / Equipment / February 2008

I was wondering if anyone can help me either via explanation or by
referring me to a proper site to understand more about this issue :
1. What is the difference between the term frequency response and
bandwidth in term of testing/calibration oscilloscopes?

Thanks to all those who helped with the oscilloscope
problem. The solution was to repair my Gould OS4100.
The new Tektronix (only $800 new) didn't have the
recording length for resolving the waveform detail.

$95
Manufacturer: Blue M
Model No.: POM-566B
Serial No.: P21-429

I'm interested in finding an affordable car video cam
like the police have in their cars now. Just video (I
think video and sound both may not be legal). One that
is stand alone (no computer required in the car), and can

I would like to build an analog volume meter (moving needle type)
using moving needle gauges like this
   http://en.wikipedia.org/wiki/Image:VU_Meter.jpg
scavenged from a dead mixer's VU meter.

I have just acquired a badly beaten HP 1722A Oscilloscope.  Does anyone
know where I can get any information from, about this model.
Thanks:

I want to dump the  spectra taken by a Network Analyzer HP3577A into a PC
using a GPIB interface.  I'd like to do it with labview. I found some
labview drivers on the web but no one works. I have been working on this
problem for days but I do not manage to find any satisfactory ...

Does anyone have a manual for a Marconi TF2700 Universal Bridge  ?
I'd be very happy to pay for a photocopy of it,  as I've just acquired
a TF2700 on eBay, but no manual with it.
Jim Hawkins

I am attempting to capture the Lown wave form generated by a
defibrilator analyzer.  This frequency of this wave length is
approximately 200 Hz in length.  To do this I have been discharging
the defib through a defibrilator analyzer.  The analyzer has an output

I bought a HP 1631D logic analyzer and realized that they do not come with
the ribbon cable/header for the probes' connector.
The model number for the probes 10271A, 10272A and they are both 11-pins.
Does any body know what are the model numbers of those connectors/adaptors

I have a R&S APN 62  signal generator (1 Hz - 260 kHz) displaying a strange
behavior-- it generates distorted wave shapes at "high" frequencies.
At low frequencies all the wave shapes are ok but starting from a few
decades of kHz sawtooth and triangular signals are more and more ...

Have a few more days left for our auction of HRO-500 mint manuals
(original!).
See "jerrymyr" auctions on eBay.
Thank you!

I am trying to use a spectrum analyzer to ID various RF signals in an
urban environment, and measure their power. I am having trouble
interpreting some of my measurements, and I would greatly appreciate
any help. Here's what happens:

Can a scope display more "traces" than "channels"?  My very basic
understanding is that a "channel" is what has a physical input connector
and a "trace" is what appears on the screen.  My confusion is about "4
trace, 2 channel" scopes.  To me this implies some kind of special ...

my HP 54200A left me. It dumps lots of &&&&& on the screen, no beep,
no keyboard actions, no obvious hardware damage.
I suppose that the contents of the EPROMs have partially disappeared
after 23 yrs. Lots of FFs between binary and text code, quite unusual