In the keyboard itself, this is the tagstrip with the majority of components on it. Part numbers correspond to the circuit diagram on the Maestrovox Official Website.

Most of these components will need to be replaced due to them failing or going well out of specification with age. Some of the wiring is ratty, and in a few places, old rubber power flex has been used. Again, the sleeving used around tinned copper wire links had degraded to a sticky mess and will need replacing.

The sub-chassis to which the two tubes, V1 and V2, are mounted is bolted down. Circuit earth is through a lug sandwiched between it and the case, rather than by a wire to an appropriate tag.