Trying to make low power SSTC

Thread Starter

AriK48

Joined Nov 7, 2025
32
I recently built a slayer exciter and want to step it up into an SSTC (antenna version). I want to start small and low power so I figure a 12V or 19V supply should be fine.

I tried a few different circuits, but none worked. A few of the circuits I tried are down below (if I remember them correctly). The only circuit that worked was the slayer exciter. I'll also post that below. The goal is to make something that runs similar to this, but without using mains voltage and more simple with a single transistor/ MOSFET driving the primary coil.

I haven't tried an interrupter yet. I assume the circuit would've worked without it.


I tried different R1 values in a bunch of ranges but nothing worked (100-1k ohm range, 10k-30k ohm range, 100k+ ohm)
 

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Thread Starter

AriK48

Joined Nov 7, 2025
32
I just realized that one reason it’s not working is because the transistor has no way to turn on at the start like the slayer exciter.
 

Thread Starter

AriK48

Joined Nov 7, 2025
32
So I tried a different circuit to try and fix the mistake I made but still doesn't work. Circuit I tried is down below.

I want to make an SSTC with a very similar design to this (link). I plan on it being low power (30W max), so I figure I can get away with a single MOSFET/ transistor.
 

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Last edited:

MisterBill2

Joined Jan 23, 2018
27,172
My evaluation of the "slayer Tesla Coil" circuits that I have seen is that they also depend a whole lot on blind luck. Lots of it.
A common oscillator circuit using a positive feedback coil as well as a drive coil can be created with about the same number of components, and be reasonably predicted to start each time power is applied.
 

Thread Starter

AriK48

Joined Nov 7, 2025
32
My evaluation of the "slayer Tesla Coil" circuits that I have seen is that they also depend a whole lot on blind luck. Lots of it.
A common oscillator circuit using a positive feedback coil as well as a drive coil can be created with about the same number of components, and be reasonably predicted to start each time power is applied.
Yah, I'm going in the direction of using a feedback system to then drive a MOSFET. But instead of using a feedback coil, I'm planning on using a feedback antenna.
 
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