/diy/ - Do It Yourself

>>806195
Are you even limiting the current? It doesn't sounds right to me to put that many volts (to what's basically a neon lightbulb) without a resistor. Maybe the current flowing through the neon is too big and it causes even more current to be drawn from the battery, stressing the step-up circuit.
This said, I don't know much about nixies, I just think it's the most obvious problem.

>>805854
I found out how to bias my lm741 OP amp so the whole waveform shape coming from the mic could be conserved and amplified. However I need to know how not to fuck up my earphones. Googling a bit has shown me the output from a standard jack can peak 3 volts ( from -3 to +3).

Now, I don't have a negative voltage source for the OP, instead I could have a constant voltage at the output, and thus current flowing though the earphone, so the signal could move up and down, but without going below 0, simulating AC, but I guess this would limit the variation of voltage (and therefore volume) before exceeding the power rating. Is there any way to transform this "simulated AC" into real AC, maybe a 1:1 transformer?

Pic related, shitty OC