Ribbon Categories: All Tube-Condenser Condenser Dynamic Ribbon All / Ribbon Film Industries M8 AEA KU5A Royer R-121 Royer SF12 Royer R-122 RCA BK5 (A & B) RCA BK-11 RCA 77-DX RCA 74-B "Junior Velocity" RCA 44DX Coles / STC 4038 STC 4033A Altec 639A Beyerdynamic M500 AEA N8 Beyerdynamic M130 Beyerdynamic M160
