As the title says looking for a cheap one. Just one that will help with amplifier settings nothing more. Saw this one as it is the cheapest one around. Cheaper the better as it won't be used for anything else.
Trigger Position: Center of Buffer. /Peak-Peak/virtual values. Short-circuit and open-circuit detection: can help the user find out the soldering error. Sensitivity Range: 5mV/Div - 20V/Div. Sensitivity Range: 5mV/Div - 20V/Div.