MANUAL INDEX 
     1. ARC Avionics Index 
     2. ARC Avionics Index
          (by Description)
     3. Sigma Tek Instruments Index
     4. Sigma Tek Instruments Index 
          (by Description)
     5. Drawing Packages

OPERATOR MANUALS
     1. 1U619-001 Radio Control Panel 
     2. 1U619-002/-003 Radio Control Panel
     3. 1U661-001 Radio Control Panel
     4. 1U661-002/-003 Radio Control Panel
     5. 1U643-( ) Data Logger

INSTALLATION MANUALS
     1. 1U619-001 Radio Control Panel
     2. 1U619-002/-003 Radio Control Panel
     3. 1U661-001 Radio Control Panel
     4. 1U661-002/-003 Radio Control Panel

169CL CLUSTER 
     1. Engine Cluster Program

SERVICE BULLETINS 
     1. Bulletin Listing

PRODUCT SPEC'S
     1. 1U619-001 Radio Control Panel
     2. 1U619-002/-003 Radio Control Panel
     3. 1U661-001 Radio Control Panel
     4. 1U661-002/-003 Radio Control Panel

GYRO SYSTEM INSTALLATION
     1. Vacuum/Pressure Interconnect Diagram

ATTITUDE GYRO SPECIFICATIONS
     1. Standard Model
     2. Standard Model with Warning Flag
     3. Standard Model with Caging and Inclinometer
     4. Arinc ATI Bezel Model

VACUUM PUMP INSTALLATION
     1. 1U128 Vacuum Pump
     2. 1U478-003 Piston Air Pump

DIRECTIONAL GYRO SPECIFICATIONS
     1. Standard Model
     2. Standard Model Heading Reminder

1U445 HSI INSTALLATION
     1. Installation Manual