Home / Forums / General melodica discussion / Soprofon 37 Universal / Reply To: Soprofon 37 Universal Reply To: Soprofon 37 Universal April 5, 2017 at 11:31 am #8790 Paul DurhamParticipant Didn’t see springs. Had you already removed them or is this a way in which the design is different from most melodicas. Anyway thanks for a very interesting lesson in construction and repair. You are extremely talented and patient.