things
New Member
Hey guys,
I have built a 555 timer circuit, which in turn drives a TIP41C to power a flyback. https://tacashi.tripod.com/elctrncs/555sstc/555sstc.gif is the circuit, exept i swapped out the said transistor for the TIP41C equiv. The problem is the output arc is VERY weak, less than 1cm. I have 12V @ 4A input, and that gave me VERY big arcs with a 2N3055 circuit, so i dont know why it isnt doing that here. is there any changes i need to make to this circuit to accept the other transistor? I feel that the transistor isn't letting enough power through, but i have no idea how to change this. Also, apparently you can chnage the 1K and 2.2K resistors, and 10nf cap to vary the freuency of the 555, what are safe rsistances to stick with, since i dont really wanna blow anything up![Big Grin :D :D](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I have built a 555 timer circuit, which in turn drives a TIP41C to power a flyback. https://tacashi.tripod.com/elctrncs/555sstc/555sstc.gif is the circuit, exept i swapped out the said transistor for the TIP41C equiv. The problem is the output arc is VERY weak, less than 1cm. I have 12V @ 4A input, and that gave me VERY big arcs with a 2N3055 circuit, so i dont know why it isnt doing that here. is there any changes i need to make to this circuit to accept the other transistor? I feel that the transistor isn't letting enough power through, but i have no idea how to change this. Also, apparently you can chnage the 1K and 2.2K resistors, and 10nf cap to vary the freuency of the 555, what are safe rsistances to stick with, since i dont really wanna blow anything up