Quick view Add to Cart Preliminary Instructions for Carburetor Air Preheater Controls Containing Thermostatic Control Valves & Servo Units Document Part Number: T.O. No. 03-1-6 Number of pages: 6Part Number: T.O. No. 03-1-6, Chapter 10 Part ABRevision Date: 30-Mar-1943Description: Manufactured By: Eclipse-Bendix for Type 773 Model 1 Valves and Type 774 Model 1 Servo Units MSRP: Was: Now: $15.00