Pulse-width-modulation signal-generatorcircuits often use ananalog sawtooth-oscillator function, butit also can be useful in other applications.The inexpensive sawtooth generatorin Figure 1 suits use ...
A design idea with a 555 analog timer that can generate an arbitrary triangle/sawtooth with its waveshape and frequency controlled by pots. If you could assemble the list of all the oscillators that ...