Part 1 shows how to make an oscillator with a pitch that is proportional to a control voltage. Part 2 ... sine wave, as Figure 4 should make clear. R4 sets the output level and C4 provides some ...

Part 1 shows how to make an oscillator with a pitch that is proportional to a control voltage. Part 2 shows how to modify the circuit for use with higher supply voltages, implement it using discrete ...