R |
| R.a.source americium 241 |
| R.a.source cobalt 60 |
| R.a.source strontium 90 |
| Plain Long Adaptor Receiver - Standard - 14/23 |
| Replacement Power Supply for LED Mains Ray Box |
| Resistor 1 k ohm |
| Resistor 1 ohm |
| Resistor 10 ohm |
| Resistor 10 k ohm |
| Resistor 100 k ohm |
| Resistor 100 ohm |
| Resistor 2.2 k ohm |
| Resistor 22 ohm |
| Resistor 330 ohm |
| Resistor 470 k ohm |
| Retort Bases - 200 X 125mm |
| Rheostat 16 ohm |
| Wooden Rule 1m - Horizontal - cm & mm |