Standard IGNITION SYSTEM TESTING - METERING AND POWER SUPPLIES 1976-11-15 HISTORICAL ARP504B This procedure establishes the ignition system power supply design parameters for aeronautical engine ignition system testing.
Standard IGNITION SYSTEM TESTING - METERING AND POWER SUPPLIES 1994-07-01 CURRENT ARP504C This procedure establishes the ignition system power supply design parameters for aeronautical engine ignition system testing.