Indeed. Poor HF feeder insulation caused RF breakthrough which was picked up by the yaw damper wiring, fed to the rudders and consequently fed back to the rudder pedals of a VC10 I once flew. Weird to find your feet being shqken in direct proprtion to SSB modulation depth!!
And as for the Tornados that could only take-off from one end of a runway as otherwise they'd get too close to the Radio Free Europe propaganda aerial in Germany.....
I'm sure that an antique 'Prinztronic Micro' (cost 49 guineas in 1972) electronic calculator of mine would have far greater effects on aircraft electronics than my cellphone - it uses 0.5W of power and totally jams MF/LF signals if switched on near a normal domestic radio receiver!