If T1 and T2 are both 12K the output voltage will be 33,936. 1N4007 diodes are rated 1000 PRV 1 amp. This is the same circuit that is used in a stun gun. T1 is 120 VAC input and 650 VAC output. The DC voltage across the 1st cap is 919 volts.
Output is between ground and the toriod.
This capacitor bank is 30 capacitors connected in series parallel. See the voltage multipier circuit below. There are 2 rows of 15 caps per rod. Each row of 15 caps are connected in series. Each diode has a 1 amp current limiting resistor in series with it.