"Ping Pong" oscillator schematic?

[ljudsystem]

I've been experimenting with the basic phase shift oscillator from the EA tremolo. I want a LFO with two LEDs where one lights up while the other dims and vice versa. So... 180 degrees out of phase with each other?

Anybody knows how to accomplish this? I've been searching the net for but can't find any schematics.

[duck_arse]

[ljudsystem]

Great, thanks!