Oscillator

An oscillator comprising:

• a resonator element;
• a circuit element electrically coupled to the resonator element and configured to output a clock signal;
• and
• a container accommodating the resonator element and the circuit element and including a substrate having a first surface on which the circuit element is mounted, wherein
• the substrate includes:
• a first electrode provided on the first surface and electrically coupled to the resonator element;
• a second electrode provided on the first surface and electrically coupled to the resonator element;
• and
• an output electrode provided on the first surface and configured to output the clock signal,
• the first electrode and the second electrode are disposed side by side in a first direction,
• the output electrode is disposed adjacent to the first electrode in a second direction orthogonal to the first direction, and
• when a virtual line that passes through an end portion of the output electrode on the first electrode side and extends along the first direction is defined as a virtual line A, an interval between an end portion of the first electrode on the output electrode side and the virtual line A is larger than an interval between an end portion of the second electrode on the output electrode side and the virtual line A in the second direction.