Hi guys.
I know it is possible for example using 74LS123..Those with dual package.. First set to produce desired frequency and doing it variable and then using the second set for adjusting and triggering the PWM.
I have a working circuit for this also...
But what I have been wondering is if it would be possible to build this using LM555?
Frequency Range 1kHz-60kHz.
D.C: 10%-80%
How would this look like? I have some experience using LM555 and know a bit of the basics about it...But there are for sure people here who know them inside and out...Output should be able to trigger a transistor. Perhaps using two potis.. 1 for frequency and 1 for PW/D.C. I have yet no idea how to make a schematic for this.
I'd like to connect them to some loudspeaker/oscilloscope and just for fun listen to how this would sound like.
I think I am also afraid if frequency is varied over a great range it would affect the outputs amplitude? Would it not?
Cheers
Franz
I know it is possible for example using 74LS123..Those with dual package.. First set to produce desired frequency and doing it variable and then using the second set for adjusting and triggering the PWM.
I have a working circuit for this also...
But what I have been wondering is if it would be possible to build this using LM555?
Frequency Range 1kHz-60kHz.
D.C: 10%-80%
How would this look like? I have some experience using LM555 and know a bit of the basics about it...But there are for sure people here who know them inside and out...Output should be able to trigger a transistor. Perhaps using two potis.. 1 for frequency and 1 for PW/D.C. I have yet no idea how to make a schematic for this.
I'd like to connect them to some loudspeaker/oscilloscope and just for fun listen to how this would sound like.
I think I am also afraid if frequency is varied over a great range it would affect the outputs amplitude? Would it not?
Cheers
Franz