I constructed a simple voltage doubler on a bread-board. Here's the schematic.
The output across the 100kΩ resistor was the following. (middle waveform is input, top is output)
Now when I scaled the resistance and capacitance (for the elements on the right) proportionally - resistance went to 1kΩ, capacitance went to 1mF - the output changed as follows.
Why does the output voltage go down so much? I can't seem to analyze the circuit and see why this would happen. Might I have mixed something up?