Eeyore ) writes:
Michael Black wrote:

Think of when you were young and first looked at circuit boards.

Circuit boards ?

Graham

Now that is funny.

To be fair, I was thinking in terms of a beginner looking at circuit
boards today (since they aren't likely to come across something else).

Nevertheless, it would apply to point to point wiring between tube
sockets, though those had the slight advantage of being easier to
trace.

Michael