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I put together an LFO based off the one in the link below. I swapped out the op amps in the schematic for 741 op amps.

Everything works fine, except for the square wave. This is supposed to be the square at 1Hz.

not square wave

Frequencies above 25Hz are fine, but below that the wave becomes more like shown.

Is there anything I can do to fix this problem?

enter image description here

Link to the schematic source.

The LFO is currently on a breadboard.

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enter image description here

Is there anything I can do to fix this problem?

Set your o-scope input channel to DC.

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