| 1 | Each test site can be thought of as an isolated resistor. | |
| 2 | By the way, R8 is a variable resistor and R2 can also be a variable resistor. | |
| 3 | Also, the resistor limits the AC gain of the feedback ammeter. | |
| 4 | The voltage rating of these resistors must be at least equal to the test voltage. | |
| 5 | "I realised then that synapses were memristors, " he says. |