Collins Radio Type 331A-7 Aircraft HSI Course Indicator 522-3138-004

This is a course indicator used in various types of commercial aircraft. It is in good working condition without damage to the housing or connector. The glass is not cracked and controls move easily. The data tag reads COURSE INDICATOR, TYPE 331A-7, RATING 26 VAC 400 CPS, 8VA 5 VAC/DC 0.7A, COLLINS PART NO. 522-3138-004, COLLINS RADIO COMPANY.