Instruction Book for Metropolitan-Vickers 3HP Speed Controls EC.304 and EC.304/1 (for use with Type 28A and 49 milling machines)

1. Function of the Control
2. Outline of the Control
3. Principles of the Control
4. A Description of the Control
5. Operation of the Control
6. Installation of the Control
7. Servicing of the Equipment
8. Components Employed
9. Schematic Diagram