Modified Tektronix 190 active probe addition
to become a really usable instrument in the lab
by sv3ora

In this page I demonstrate a further modification to an already modified Tektronix 190 constant amplitude signal generator, in order to add an active probe to it and make it a really usable instrument in the lab.

If you do the modification, make sure you print, laminate and attach the next image to the internal cabinet of the instrument.



The image above is the complete schematic (all modifications of the instrument) and includes instructions about the operation and the usage of the instrument with the modifications I did.
You may also be interested in watching the videos of the initial modification (with a passive detector probe instead). If you just want to use a passive probe on the instrument, then you would probably interested in that page only.

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