oscilloscope probe compatible with the Tektronix 7904?

S

Sam Kaan

Guest
http://members.rogers.com/cadnewbie/probe/probe.jpg

Could someone please tell me if the non-tektronix probe will work with the
tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

This is rated up to 300Mhz, and has the rating 10x on it.

Will this work with the 7904? I had thought it would until a closer look
reveals the thing has a little pin jutting out of the
BNC connector plug on the probe (similar to the one in the above pic). My
memories from looking somewhere tells
me that the 7000s series of Tektronix probe don't have this little
retractable pin on the BNC connector. And that these
probe are good for the 24xx series. Is this correct?

It appears that this pin is connected directly to the BNC outer surface
(ground?), but I am not sure.

So far I have hooked it to a 7A13 plugging and been trying to read a sine
wave off a 16V AC transformer without any luck.
The 7A13 has two input connector, one is marked +ve and the other -ve. I
have been trying to read it off the +ve side.
 
Sam Kaan wrote:
http://members.rogers.com/cadnewbie/probe/probe.jpg

Could someone please tell me if the non-tektronix probe will work with the
tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

This is rated up to 300Mhz, and has the rating 10x on it.

Will this work with the 7904? I had thought it would until a closer look
reveals the thing has a little pin jutting out of the
BNC connector plug on the probe (similar to the one in the above pic). My
memories from looking somewhere tells
me that the 7000s series of Tektronix probe don't have this little
retractable pin on the BNC connector. And that these
probe are good for the 24xx series. Is this correct?

It appears that this pin is connected directly to the BNC outer surface
(ground?), but I am not sure.

So far I have hooked it to a 7A13 plugging and been trying to read a sine
wave off a 16V AC transformer without any luck.
The 7A13 has two input connector, one is marked +ve and the other -ve. I
have been trying to read it off the +ve side.
Click to expand...
Can you read the sine wave without the probe?
There are a LOT of buttons/knobs on the 7a13/7904 that have to be in the
right
position to get anything thru.
mike

--
Return address is VALID.
Bunch of stuff For Sale and Wanted at the link below.
Toshiba & Compaq LiIon Batteries, Test Equipment
Honda CB-125S $800 in PDX
TEK Sampling Sweep Plugin and RM564
Tek 2465 $800, ham radio, 30pS pulser
Tektronix Concept Books, spot welding head...
http://www.geocities.com/SiliconValley/Monitor/4710/
 
"mike" <spamme0@juno.com> wrote in message news:3FFD38FE.7090901@juno.com...
Sam Kaan wrote:
http://members.rogers.com/cadnewbie/probe/probe.jpg

Could someone please tell me if the non-tektronix probe will work with
the
tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

This is rated up to 300Mhz, and has the rating 10x on it.

Will this work with the 7904? I had thought it would until a closer
look
reveals the thing has a little pin jutting out of the
BNC connector plug on the probe (similar to the one in the above pic).
My
memories from looking somewhere tells
me that the 7000s series of Tektronix probe don't have this little
retractable pin on the BNC connector. And that these
probe are good for the 24xx series. Is this correct?

It appears that this pin is connected directly to the BNC outer surface
(ground?), but I am not sure.

So far I have hooked it to a 7A13 plugging and been trying to read a
sine
wave off a 16V AC transformer without any luck.
The 7A13 has two input connector, one is marked +ve and the other -ve.
I
have been trying to read it off the +ve side.



Can you read the sine wave without the probe?
There are a LOT of buttons/knobs on the 7a13/7904 that have to be in the
right
position to get anything thru.
Click to expand...
Nothing without the probe either.

This is how I set up the 7A13 and 7B52 timebase.

horizontal sweep speed: 2ms/division (actrually tried rotating the knob
over the whole range also)
vertical amplifier: 1 V/division (actrually tried rotating the knob over the
whole range also)
trigger: AUTO
trigger source: LINE.
 
Sam Kaan wrote:
http://members.rogers.com/cadnewbie/probe/probe.jpg

Could someone please tell me if the non-tektronix probe will work with the
tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

This is rated up to 300Mhz, and has the rating 10x on it.

Will this work with the 7904? I had thought it would until a closer look
reveals the thing has a little pin jutting out of the
BNC connector plug on the probe (similar to the one in the above pic). My
memories from looking somewhere tells
me that the 7000s series of Tektronix probe don't have this little
retractable pin on the BNC connector. And that these
probe are good for the 24xx series. Is this correct?

It appears that this pin is connected directly to the BNC outer surface
(ground?), but I am not sure.

So far I have hooked it to a 7A13 plugging and been trying to read a sine
wave off a 16V AC transformer without any luck.
The 7A13 has two input connector, one is marked +ve and the other -ve. I
have been trying to read it off the +ve side.
Click to expand...
The pin should touch a ring around the BNC connector to tell the
scope whether you are set to 1X or 10X. Most Tek scopes use this design.

--
We now return you to our normally scheduled programming.

Take a look at this little cutie! ;-)
http://home.earthlink.net/~mike.terrell/photos.html

Michael A. Terrell
Central Florida
 
Sam Kaan wrote:
"mike" <spamme0@juno.com> wrote in message news:3FFD38FE.7090901@juno.com...

Sam Kaan wrote:

http://members.rogers.com/cadnewbie/probe/probe.jpg

Could someone please tell me if the non-tektronix probe will work with

the

tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

This is rated up to 300Mhz, and has the rating 10x on it.

Will this work with the 7904? I had thought it would until a closer

look

reveals the thing has a little pin jutting out of the
BNC connector plug on the probe (similar to the one in the above pic).

My

memories from looking somewhere tells
me that the 7000s series of Tektronix probe don't have this little
retractable pin on the BNC connector. And that these
probe are good for the 24xx series. Is this correct?

It appears that this pin is connected directly to the BNC outer surface
(ground?), but I am not sure.

So far I have hooked it to a 7A13 plugging and been trying to read a

sine

wave off a 16V AC transformer without any luck.
The 7A13 has two input connector, one is marked +ve and the other -ve.

I

have been trying to read it off the +ve side.



Can you read the sine wave without the probe?
There are a LOT of buttons/knobs on the 7a13/7904 that have to be in the
right
position to get anything thru.


Nothing without the probe either.

This is how I set up the 7A13 and 7B52 timebase.

horizontal sweep speed: 2ms/division (actrually tried rotating the knob
over the whole range also)
vertical amplifier: 1 V/division (actrually tried rotating the knob over the
whole range also)
trigger: AUTO
trigger source: LINE.
Click to expand...
Get the plugin to work before you worry about the probe.
There are channel switch buttons on the mainframe.
There are input buttons on the plugin.
There are a bunch of offset buttons/knobs that can put the
trace off screen even if everything else is ok.
Do you have the green line on screen? Intensity turned up?
Display readout visible?
Push the beamfinder button.

If all else fails, read the manual.
mike

--
Return address is VALID.
Bunch of stuff For Sale and Wanted at the link below.
Toshiba & Compaq LiIon Batteries, Test Equipment
Honda CB-125S $800 in PDX
TEK Sampling Sweep Plugin and RM564
Tek 2465 $800, ham radio, 30pS pulser
Tektronix Concept Books, spot welding head...
http://www.geocities.com/SiliconValley/Monitor/4710/
 
"mike" <spamme0@juno.com> wrote in message news:3FFDB6D5.50708@juno.com...
Sam Kaan wrote:
"mike" <spamme0@juno.com> wrote in message
news:3FFD38FE.7090901@juno.com...

Sam Kaan wrote:

http://members.rogers.com/cadnewbie/probe/probe.jpg

Could someone please tell me if the non-tektronix probe will work with

the

tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

This is rated up to 300Mhz, and has the rating 10x on it.

Will this work with the 7904? I had thought it would until a closer

look

reveals the thing has a little pin jutting out of the
BNC connector plug on the probe (similar to the one in the above pic).

My

memories from looking somewhere tells
me that the 7000s series of Tektronix probe don't have this little
retractable pin on the BNC connector. And that these
probe are good for the 24xx series. Is this correct?

It appears that this pin is connected directly to the BNC outer surface
(ground?), but I am not sure.

So far I have hooked it to a 7A13 plugging and been trying to read a

sine

wave off a 16V AC transformer without any luck.
The 7A13 has two input connector, one is marked +ve and the other -ve.

I

have been trying to read it off the +ve side.



Can you read the sine wave without the probe?
There are a LOT of buttons/knobs on the 7a13/7904 that have to be in the
right
position to get anything thru.


Nothing without the probe either.

This is how I set up the 7A13 and 7B52 timebase.

horizontal sweep speed: 2ms/division (actrually tried rotating the knob
over the whole range also)
vertical amplifier: 1 V/division (actrually tried rotating the knob over
the
whole range also)
trigger: AUTO
trigger source: LINE.



Get the plugin to work before you worry about the probe.
There are channel switch buttons on the mainframe.
There are input buttons on the plugin.
There are a bunch of offset buttons/knobs that can put the
trace off screen even if everything else is ok.
Do you have the green line on screen? Intensity turned up?
Display readout visible?
Push the beamfinder button.
Click to expand...
Yes I can see the green line across the screen. I positioned the
line right smack in the middle. Tiddle with the time division knob
and the line will either becomes solid line or apear as a slow moving
dot across the screen moving from left to right. In other word
if I turn the thing clockwise all the way it becomes a solid line across.
Do the reverse and it becomes a dot moving from left to right.
I think the plugin is working, just that it is a complex piece of equipment.
 
"Sam Kaan" <strshn2003@rogersNOSPAM.com> wrote in
news:1i7Lb.44716$1g41.28135@twister01.bloor.is.net.cable.rogers.com:

http://members.rogers.com/cadnewbie/probe/probe.jpg

Could someone please tell me if the non-tektronix probe will work with
the tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

This is rated up to 300Mhz, and has the rating 10x on it.

Will this work with the 7904? I had thought it would until a closer
look reveals the thing has a little pin jutting out of the
BNC connector plug on the probe (similar to the one in the above
pic). My memories from looking somewhere tells
me that the 7000s series of Tektronix probe don't have this little
retractable pin on the BNC connector. And that these
probe are good for the 24xx series. Is this correct?

It appears that this pin is connected directly to the BNC outer
surface (ground?), but I am not sure.

So far I have hooked it to a 7A13 plugging and been trying to read a
sine wave off a 16V AC transformer without any luck.
The 7A13 has two input connector, one is marked +ve and the other -ve.
I have been trying to read it off the +ve side.
Click to expand...
TEK 10X probes have a pin that contacts the outer ring on the input BNC for
switching the readout to compensate for the V/div change.(rescales the RO
to indicate the at-probe-tip sensitivity.)
This probe may be similar.
Does this probe have it's own grounding switch?(gives a gnd reference
without having to use the 7A13 buttons.)
Do you get a signal from the scope calibrator output? (sq.Wave) With just a
wire to the cal BNC? (indicating the 7A13 input works)

Like if your 7A13 is set at 1V/div,then you connect a 10X probe,the RO will
change to 10V/div,the true sensitivity.

Have you selected the buttons on the 7A13 for AC-GND-DC for the input you
are using?

--
Jim Yanik
jyanik-at-kua.net
 
"Jim Yanik" <jyanik@abuse.gov> wrote in message
news:Xns946ADA10A4465jyanikkuanet@204.117.192.21...
"Sam Kaan" <strshn2003@rogersNOSPAM.com> wrote in
news:1i7Lb.44716$1g41.28135@twister01.bloor.is.net.cable.rogers.com:

http://members.rogers.com/cadnewbie/probe/probe.jpg

Could someone please tell me if the non-tektronix probe will work with
the tektronix oscilloscope specifically the 7904
I recently got a ProbeMaster 4906-1RA.

This is rated up to 300Mhz, and has the rating 10x on it.

Will this work with the 7904? I had thought it would until a closer
look reveals the thing has a little pin jutting out of the
BNC connector plug on the probe (similar to the one in the above
pic). My memories from looking somewhere tells
me that the 7000s series of Tektronix probe don't have this little
retractable pin on the BNC connector. And that these
probe are good for the 24xx series. Is this correct?

It appears that this pin is connected directly to the BNC outer
surface (ground?), but I am not sure.

So far I have hooked it to a 7A13 plugging and been trying to read a
sine wave off a 16V AC transformer without any luck.
The 7A13 has two input connector, one is marked +ve and the other -ve.
I have been trying to read it off the +ve side.



TEK 10X probes have a pin that contacts the outer ring on the input BNC
for
switching the readout to compensate for the V/div change.(rescales the RO
to indicate the at-probe-tip sensitivity.)
This probe may be similar.
Does this probe have it's own grounding switch?(gives a gnd reference
without having to use the 7A13 buttons.)
Click to expand...
I don't think so. All I see on the probe BNC is just as shown in these
photos.
http://members.rogers.com/cadnewbie/probe/probeA.JPG
http://members.rogers.com/cadnewbie/probe/probeB.JPG
http://members.rogers.com/cadnewbie/probe/probeC.JPG
http://members.rogers.com/cadnewbie/probe/probeD.JPG

Notice the third picture probeC.JPG shows what appears to be a recessed knob
of
some kind, which appears like a phillips type screw. Maybe its for
calibration.

Do you get a signal from the scope calibrator output? (sq.Wave) With just
a
wire to the cal BNC? (indicating the 7A13 input works)
Click to expand...
Which calibrator output are you referring to? I have put in some label in
this photo
could you identify the calibrator output you are referring to?
http://members.rogers.com/cadnewbie/tek/osc4.JPG

Like if your 7A13 is set at 1V/div,then you connect a 10X probe,the RO
will
change to 10V/div,the true sensitivity.
Click to expand...
So each division represents a 10V magnitude even when your knob is set at
1V/div??

Have you selected the buttons on the 7A13 for AC-GND-DC for the input you
are using?
Click to expand...
I am not sure how you set this AC-GND-DC you indicated here. I have here a
photo of the 7A13
http://members.rogers.com/cadnewbie/probe/7A13.JPG
As you can see there are 2 BNC connector for on it. One is labeled +input
and the bottom as -input
to the right are 4 push buttons each. They are exclusive and labelled AC,
GND, DC, Vc ie. you can
only choose one of them for each of the two sets associated with +input
and -input respectively.
What I did was pressed on AC because that is what I am trying to display.

Also on the other pluggin (timebase) I set it to auto mode. Source to
'line'. Displaymode 'mainsweep'
http://members.rogers.com/cadnewbie/probe/7B52.JPG

In any case I think if I can get the square wave you mentioned above to
work, it would be a good start.
 
"Sam Kaan" <strshn2003@rogersNOSPAM.com> a écrit dans le message de
news:L6sLb.39187$AJB.3372@news04.bloor.is.net.cable.rogers.com...
Which calibrator output are you referring to? I have put in some label in
this photo
could you identify the calibrator output you are referring to?
http://members.rogers.com/cadnewbie/tek/osc4.JPG
Click to expand...
Oupps, I think you definitively need to spend some time in the manual of
this scope ! Looking at this picture only at least there are three
configuration mistakes :
- "A trigger source" is set to "right vert", and you have only a "left"
vertical amplifier. Should be set to "right vert" or "vert mode". Currently
the scope will never trigger
- "Vertical mode" is set to "chop" and you have only one vertical amplifier,
should be set to "left"
- "Horizontal mode" is set to "chop" and you have only one time base. Should
be set to "A".

I've not looked at the pictures of the plugins but these kind of scope NEED
to fully read manuals of the mainframe AND of each plugin... Good luck !

Robert.
 
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