show how the experimental circuits we look at are built using breadboard block. Obviously, any circuit may be built in a lot of different ways and so you don’t have to follow my diagrams, or use the same breadboard as used here, but doing so will mean that your circuit is the same as mine and so easier to compare. The choice is yours. And — remember — the big advantage about using breadboard is that the components can be pulled out when the circuit is finished and you can use them again (provided you’ve been careful and haven’t damaged them).
On the boards
● it must have an accuracy of no worse than ±5%.
● its smallest d.c. voltage range should be no greater than 1 V.