Collins 328A-2 Compass Amplifier P/N 522-1171-005 from $129.75 Qty. Add to Cart This item is a recurring or deferred purchase. By continuing, I agree to the cancellation policy and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. Condition: UsedCondition Description: serviceableManufacturer Part Number: 522-1171-005 Qty available: 1 Tweet