Hameg HM712 - unknown input-connector

[karagulon]

Hi there.

I found an old (2-channel) Oscilloscope: Hameg HM-712. It works properly.
On the rear there is a mysterious BNC-connector named "Z-Input".
Does anybody know what this is for?

Thanks in advance.

 

[Joerg Hau]

Hi

I found an old (2-channel) Oscilloscope: Hameg HM-712. It works
properly. On the rear there is a mysterious BNC-connector named
"Z-Input". Does anybody know what this is for?

That should be an input to modulate beam brightness, usually something
in the 0...5 V signal level.

Cheers + HTH,

- Joerg


--
joerg dot hau at swissonline dot ch * Lausanne, Switzerland
http://homepage.sunrise.ch/mysunrise/joerg.hau/
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[Terran Melconian]

In article <h7l51c.314.ln@54693.user.dfncis.de>,
Joerg Hau <nospam.joerg.hau@swissonline.ch> wrote:

That should be an input to modulate beam brightness, usually something
in the 0...5 V signal level.

Sometimes they'll go negative to increase the brightness, as well.

As a related question, what are they commonly used for? In all the time
I've had an oscilloscope that had such an input, I've never actually
come across an application where it seemed useful.

 

[karagulon]

As a related question, what are they commonly used for? In all the time
I've had an oscilloscope that had such an input, I've never actually
come across an application where it seemed useful.

In this case (sounds logical - i'll test it later), the modulation of the
beam-brightness makes kind of TV-pictures possible.
Something like X-Y modus and picture-information in then modulation.
Am i right?

 

[Lewin A.R.W. Edwards]

That should be an input to modulate beam brightness, usually something

As a related question, what are they commonly used for? In all the time

Displaying brightness-modulated picture images, for a prank.