Circuit Question, Electrical Engineering?

I'm trying to design an RC circuit that has an output that looks kind of like a sawtooth wave. In other words I want there to be a charging time then a discharge time. Yes I know that I could just make an astable 555 timer circuit, but I just want and RC that does kind of the same job. Diodes and... show more I'm trying to design an RC circuit that has an output that looks kind of like a sawtooth wave. In other words I want there to be a charging time then a discharge time.

Yes I know that I could just make an astable 555 timer circuit, but I just want and RC that does kind of the same job.

Diodes and inductors are fine to use aswell, I mainly just want to avoid Integrated Ciruit use.
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