I have a scope, but my signal generator took a dive this weekend. I was going to order an inexpensive Temna (sine only) or Allied Electronics (sine and square wave) to replace it.

For these tests, what do I need? Can I get away with just 1 Khz or do I need a range?

Also, what size and value resistor?

I'm accustomed to chasing a circuit with a scope, just by checking if the sine is oscillating or clipping. Do I need to do anything more sophisticated?

At this point, I know nothing of speaker testing.

Thanks.