The flux density in the core Gauss B, for a sinusoid is calculated by B= (Vp X E +8)/ 4.44 X Np X Ac X f where Vp is the primary voltage, Np is primary turns, Ac is area of core in cm sq, and f is frequency in Hz.....usually 50 0r 60. B can vary from 12, 000 for inexpensive 24Ga steel to 17,800 for tape wound toroid steel. The use of ROT Np= 42/Ac is pure bullshit as it does not take into account the quality of the steel, the stacking factor, as well as the high line primary voltage. It will result in excessive number of turns and poor voltage regulation.
1.3 only on the first winding layer but for the second it must be increased so the count should be redone, an average calculation should be made to be exact.
bro for frimer coils, 1mm wire in double or in parallel so that 2mm will be rolled together at the same time or not, then the N ends are joined with N and the L ends are joined with L or each end is joined thanks.
Try make the turns more Even and regulair this will decrease 'transformer noise' same distance between each turn and lay it out with respect to primary.
you forget to give what is the exact size of a coil to be used in primary winding .and also in the secondary winding. and pls solder it before putting a spaghetti wire to secure your connection right.lol😂😂😂goodluck to others who attempt to copy this tutorial..😂
Could of used thicker stuff 2.5mm and just had 2 coils and reduce voltage with zener diode circuits or other smaller transformer step down or step up 😁
