A complete set for making a record of sonic variations that may be afterwards reproduced on a compatible sound reproducer.
NSN 5950-01-390-3504
NSN 6105-00-992-1244
NSN 6240-01-606-5161
NSN 5950-01-382-9337
NSN 5920-00-587-1583
NSN 5920-00-908-1929
NSN 5950-00-528-9907
NSN 5905-00-764-6807
NSN 2925-01-565-6410
NSN 6320-00-456-0836
NSN 6620-01-469-2352
NSN 7035-01-100-2796