With a reference-clip from both probes (channel 1 and 2) connected I’m actually shunting around one of the diodes, effectively turning the bridge back into a half-wave rectifier.

Left panel, superconducting rectifier circuit used to convert AC currents into DC using four superconducting diodes (blue) connected by superconducting interconnects and one smoothing capacitor (C ...

When the input signal Vin is positive, Op-Amp output terminal is negative, Diode D1 is reverse biased and D2 Diode is forward biased, the circuit is Vb = - (R2/R1) * Vin In the circuit, R1 and R2 have ...