I'm looking to build a little oscillator, generating (say) 100Hz, powered by a battery.
Looking at the wikipedia mutivibrator article, it talks about what the values for c1 and r1, and c2 and r3 should be. But what values are suitable for the two other resistors: r1 and r4? Should I pick an arbitrarily high value? A low one? One that's some multiple or fraction of the other two resistors?