ENERGY AMPLIFICATION

[a.king21]

mosfets can be faulty and have been known to stick. I suggest you try a replacement mosfet.
It's possible the 555 timer is from a rogue batch also as they are cheap and mass produced.

[Grumage]

Having problems with the circuit, doesnt act like the mosfet is conducting, I get 1k hz when I flip the switch but then nothing no more oscillations to the gate.

Dear Dave45.

Try placing a small pF value capacitor between gate and ground. I have dim memories now but it might help !!

Cheers Grum.

[d3x0r]

Having problems with the circuit, doesnt act like the mosfet is conducting, I get 1k hz when I flip the switch but then nothing no more oscillations to the gate.

Need a pulldown resistor on the mosfet gate; there's nothing to relieve the pressure on the gate.
A capacitor on the gate will be the same as the gate itself

[Grumage]

Need a pulldown resistor on the mosfet gate; there's nothing to relieve the pressure on the gate.
A capacitor on the gate will be the same as the gate itself

Dear d3x0r.

Thanks for that !! I knew you had to put something between gate and ground. 1 M ohm now springs to mind. Twas along time ago for me and my basic electronics training !!   

Cheers Grum.

[d3x0r]

Dear d3x0r.

Thanks for that !! I knew you had to put something between gate and ground. 1 M ohm now springs to mind. Twas along time ago for me and my basic electronics training !!   

Cheers Grum.

Depends on how long you want for the fall time of the signal... and will also affect the rise time... which then brings you to the realm that you  need a mosfet driver structure with a capacitance and another active part to dump that quickly to the mosfet