Mocked up the front panel of what will be the control unit...
...only to discover that the (Anders) panel meters which arrived were nothing short of disappointing; one seemingly having spontaneously fallen apart in its box, the other having no usable zeroing ability. Amazingly shoddy build quality given the price. Have since opted for a pair of rather larger Simpson meters, requiring a rethink of the layout...
And the actual board...
...only to discover that the (Anders) panel meters which arrived were nothing short of disappointing; one seemingly having spontaneously fallen apart in its box, the other having no usable zeroing ability. Amazingly shoddy build quality given the price. Have since opted for a pair of rather larger Simpson meters, requiring a rethink of the layout...
The panel shown is just temporary 3 mm foam board - but allows lots of latitude with getting the layout right. In time it'll be replaced by a 3 mm aluminium panel. The rack is a 200 mm deep 19 inch shelf rack. Power supply board visible on the left - the card guides on the right will take the ramp board and so on. Expensive Swiss switches to the right.
Here's the circuit which drives the meters...
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