1275A General instruments Vol. I (section 1: indicators, 2: gyroscopic instruments, 3: gauges, 4: thermometers and other temperature measuring equipment) 1275A General instruments Vol. I (section 15: gauges - mechanical, 16: gauges and positioning indicating instruments - electrical, 17: thermometers, 18: fuel system equipment) 1275B Navigation instruments Vol. 1 (section 1: indicators (incompl), 2: altimeters (incompl), 3: compasses (incompl), 4: drift instruments, 5: astronomical instruments, 6: plotting instruments, 7: … 4343J Electrical manual - Airborne and ground power indicators, test meters, testers and precision indicating instruments Vol. 1: General and technical information
