Hi Ekran,

Can you give details of your setup?

1. No of turns for coil winding?
2. Gauge of wires used?
3. Components used like transistor, diodes and others?

Too little windings for trigger coil will not trigger the transistor. TO3 transistor casing is a bit tricky to identify base and emmiter. Check everything again. Bedini SSG should start easily if the components connected correctly.