I'm wondering if it has to with leakage and no bias paths. one wierd transistor circuit I saw recently basically had an open base and the transistor would turn on with the base unconnected. Something I would think is not normal, except for that particular transistor. We know what the lack of bias return paths does with OP amp circuits. Something like that may be happening here.
I'm guessing that adding a very large resistor, like 10 M ohms between the probes, would solve that. I'd probably try to figure out a better value by looking at the leakage currentes of the current source transistors. I might think about it some more.
I'm guessing that adding a very large resistor, like 10 M ohms between the probes, would solve that. I'd probably try to figure out a better value by looking at the leakage currentes of the current source transistors. I might think about it some more.