[Techtoolslist] O-scope Z-Channel Question

[Martin White]

Good point - didn't read that properly! I'm just using straight BNC - 
 > 2x croc clip on all three inputs. No probes.



> Matt Rossiter wrote:

>> I'm using a Tektronix 475 Oscilloscope and, of course, I use XY  

>> mode for

>> testing to see if the X and Y signals look good on the screen.   

>> There is

>> an external Z axis channel in the back, but I've never gotten it

>> completely to work.  Someone once told me that I need to use an  

>> inverter

>> to invert the signal into the probe - which sort of works, but I  

>> still see

>> the vector retrace lines.

>

> What do you mean "into the probe"?  If you're using a X10 probe after

> the inverter there wouldn't be enough signal left for proper blanking.

>

>

>>   Is it possible to completely blank out the Z

>> signals so that the picture looks the way it's supposed to?

>>

>> Thanks

>>

>> Matt