VOX: Modded Vintage AC-4 schematic and tagboard layout

While I'm in the process of modding / rebuilding some Vox amps, I thought I might try the original Vox AC-4 from 1962, or at least a simplified version of it.  

Apart from the simplicity, I want to try something with an EF86 pentode valve as the preamp.  These were in a lot of early Vox amps, but they were more difficult to manage than an ECC83 as they are a bit microphonic, and this became a problem as wattages increased.  Less of a problem in a small amp like this - but still needs to be managed.

I have not detailed the wiring of valves, resistor wattages, cap voltages and transformers etc on my layout, as you can work this out from the schematic - and if you can't work it out, you should not be playing inside amps.

VOX AC-4 SCHEMATIC - TREMOLO CIRCUIT REMOVED

MODDED AC-4 LAYOUT

ORIGINAL VOX AC-4 SCHEMATIC

Details on the original can be found here.