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Step 2The cabinet
It will need something to hold the circuit board, a battery and the headphone socket. I shall use a AAA cell to power it, and use the metal cladding from two AA cells to fabricate a suitable cover for these.
It is the only way to end up with an assembly little thicker than the battery powering it.
The picture shows the metal cladding being liberated from a couple of dead AA cells.
It is the only way to end up with an assembly little thicker than the battery powering it.
The picture shows the metal cladding being liberated from a couple of dead AA cells.
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