Which Tannoys, folks?

[Reffc]

Yep the bypass cap should be 1.5uf. I used the Russian cold war versions, it's a PLIO cap and are amazing.. better to my ears in that position than an MR.

The 47R resistor is correct or as close as can be to 50R. But with an autoformer you can take that resistor out of circuit as the autoformer on one of the settings (can't remember which) is near enough the correct impedance.

I don't think that's actually accurate Joe. The autoformer has an impedance ratio across the coils between green/orange so the driver doesn't actually see 50 Ohms at all settings, only for the one where the ratio is 1:1. I'll double check that though as you've got me thinking. It's the "green" autoformer tapping that I'm emulating for the fixed inductor/ resistor values.