[mole42uk]

In the simulations I've done so far, the circuit settles after 0.6ms. I'm quite keen to see the start-up so check that I don't exceed any static values. I don't have an in-depth understanding of LTspice at all, so I'm leaving that to directives that seem to work for me.

I really want this to be finished, it's a real challenge but I do wonder if I'm trying to achive an impossibility - a sine-wave 1MHz nominally 50Ω output that is happy at almost any load that I throw at it. The output that I was originally designing for - a 1MHz into 50Ω reference to lock the Marconi 2955 onto seems to have been easy by comparison.