From: Tony Duell <ard(a)p850ug1.demon.co.uk>

The first part is a false conclusion. It's safe to say that L2 is needed for a single-chip _2K_ machine (using a 6116 or similar), which is what we've been saying all along. For a single-chip 1K machine (using a 4118), you use L1. You've not seen one of those boards, so you've not seen a machine with L1 fitted.