Help with output current

[Goodrat]

I'd like to collect data for as many machines as I can as far as maximum output current at the headphone jack. So if you have a true rms ammmeter, connect it right accross the output to simulate what you have at a short circuit durring a constant loud signal, threshold or batt test.
I get 14mA on a Bandito durring the battery test.
Does anyone have a machine that is more than that?

[chemelec]

Not quite sure Why this info would be important in any way.

But if you Eliminate the output cap on my PI unit, In theory the 555 can drive 200 mA of Square wave.

[Goodrat]

Why...

For headphone design.
That 200 mA would burn out a headphone volume control in a hurry.

[Goodrat]

Wiper current

The max current allowed though the wiper if a 1K, 0.2W pot is 14mA for example. Then you consider the series limiting resistor, peak voltage, duty cycle etc.

[chemelec]

If the control is at max to get full output, it is ideally zero resisance, therefore it shouldn't burn out the pot.

But on my personal unit, I don't use a volume control anyway, Always full volume. And since I'm driving a Pizo device I don't use the cap either.
No resistor either as I don't use headphones.
Not that the Pizo can draw anywhere that much current, but I don't believe that was not part of your question.

Yes, Duty cycle will affect the Continuous current. However the Pulses can be 200 ma if the load resisance is low.

[Goodrat]

Pot Power

The max allowed current though the wiper is the square root of: [the pot power rating divided by the max resistance]. This is the max no matter where the wiper is. The pot is rated with this in mind. A 10K , 0.2w = 4.47ma, or 14.1ma for a 1K pot. If the pot is at 1 ohm, no mather what the power at that junction. No more that is allowed.
Anyway, I just like to keep data for things like this.