['LIVEWIRE?']

I once used two AL60s to repace faulty amplifier boards in a Sinclair Project 60, which I still have around somewhere)In this I fitted speaker coupling caps. (1000uf from memory) beacuse I was still using the single rail Sinclair PSU, though I guess that, if a split supply is used, the circuit would work quite happily wired this way. As to diagrams, I traced out the circuit and drew it, but this was years ago. If I can find it I'll post it on here. Oddly, the Sinclair Project 60 booklet include full circuit diagrams of the pre amp, power amp, and PSUs used, but no PCB layouts. Bi-Pak obviously didn't see the need to do likewise!