tunnel diodes retrace lines in curve tracer


Miguel Work
 

Hi folks

I´m looking tunnel diode in curve tracer, I don´t understand because the retrace, jumping lines are straight and no in cross pattern

https://w140.com/tekwiki/wiki/Russian_tunnel_diodes#/media/File:Tunnel_Diode-RU-1I308G.jpg

help! :)

Thanks

Regards

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