It's a SuperT prototype
Yeah, just want to see if I could fool anyone. You are all too sharp.
Sonic Screwdriver Mark III
The sonic stripped down to its metallic elements. (DW: Frontier in Space)
The Third Doctor fitted the head of his sonic screwdriver with a cylindrical black magnet which enabled it to open bolted doors, especially when its polarity was reversed. (DW: Frontier in Space) This refit left the metal mostly unpainted, with a dark red emitter ring. The head of this model could be extended. Before this model was destroyed (DW: The Visitation) , its head was repainted twice after the original coat wore off. (DW: The Keeper of Traken, Castrovalva) The Doctor went without a sonic screwdriver for some time after this model and Nyssa lamented the Fifth Doctor's decision not to replace it. (DW: Snakedance)
Known uses Edit
To unbolt a door. (DW: Frontier in Space)
To fuse shut a sliding door. (DW: Planet of the Daleks)
To open a lift door. (DW: The Green Death)
To distract giant maggots. (DW: The Green Death)
To detect boobytrapped floor tiles. (DW: Death to the Daleks)
To break a hypnotic trance. (DW: Death to the Daleks)
To open a refinery door. (DW: The Monster of Peladon)
To remotely detonate mines. (DW: Robot)
To cut locks. (DW: Robot)
Undoing screws. (DW: The Ark in Space)
Repairing wires chewed by the Wirrn. (DW: The Ark in Space)
To fix a circle of transmat refractors. (DW: The Sontaran Experiment)
To breach a force field. (DW: The Sontaran Experiment)
To shut down Styre's robot. (DW: The Sontaran Experiment)
To sabotage a two-way radio. (DW: Genesis of the Daleks)
Deactivate an energy loop opening up Sutekh's deflection barrier. (DW: Pyramids of Mars)
To shatter the Clynex. (DWM: The Naked Flame)
To create a temporary hole in Gallifrey's force field above the Citadel. (DW: The Invasion of Time)
Using the correct sonic frequency to return the Fourth Doctor, Ernestina Stott and later, his scarf, to normal size. (AG: The Dead Shoes)
To open doors on Ribos. (DW: The Ribos Operation)
To unlock multi-levered interlocks to the Ribos crown jewels casket (DW: The Ribos Operation)
To open the door to the real Queen Xanxia's chamber. (DW: The Pirate Planet)
To free Romana from her bonds on a prison ship in hyperspace. (DW: The Stones of Blood)
To blow up a Dalek bomb. (DW: Destiny of the Daleks)
To unscrew the Zero Room's hinges and assist in constructing the Zero Cabinet. (DW: Castrovalva)
To disarm fusion bombs by reversing the polarity of the neutron-flow. (MA: Cold Fusion)
To open a door to escape confinement. (DW: Four to Doomsday)
To reverse the magnetic field on Monopticans. (DW: Four to Doomsday)
To short-circuit androids in conjunction with a pencil, the graphite acting as a conductive material for the screwdriver's power. (DW: Four to Doomsday)
To use as a component in the Delta wave augmenter, to induce sleep. (DW: Kinda)
TO VAPE?