Test Gear From the US

[Yorkie]

I wouldn't have thought so. All bridges work on the same Wheatstone bridge principle - four 'arms' with the test cap in one arm of the bridge in series with the calibrated pot and attached dial, and the meter (or as often as not, a magic eye) across the bridge. When the four arms are brought into balance by rotating the pot, no current flows across the bridge so you get a null at that point on the meter/magic eye, and the value of the cap (or resistor) can be read off the dial. Whatever the mains frequency, it will apply to all arms of the bridge including the cap under test.

At least, that's how it seems to me.