Russian radars? F35? Are you trolling this sub-forum? jajaajaja
About "russian" radars
, I only can recomend read the threads about AA systems in this sub-forum.
About F-35 flying over Iran, I only can say: It's extremely naive thinking Israel would fly its recently acquired F-35 above an extremely hard and contested enemy airspace (Iran) with an extremely high % of being intercepted and taken down, giving an incredible propaganda victory to Iran and also giving access to F-35 stealth tech to Iran.
Also, USA would not allow Israel to do that, for the same reasons.
In addition, even extremely critics of the ayatollahs' Iran (Babak Taghvee) say the same: F-35 over Iran= TONS OF BULLSHIT