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) 1275T Calibration and Test Equipment Vol. I (section 1: tachometers, 2: gyroscopic instruments, 4: thermometers and temperature operated equipment, 5: fuel system equipment, 6: oqxygen …