| Name, devicetype | Tubes used | Tubes powersupply | Schematics |
|---|---|---|---|
| Condensor mike pre-amplifier, RB '64 | 12AX7 | SS | Schematic(17k) |
| Neumann U47-NG, microphone-amp | VF14 | NA | Schematic(16k) |
| Neumann U48, microphone-amp | VF14 | NA | Schematic(16k) |
| Scott dynamic noise suppressor | ???, 2*6SG7, 6SL7 | NA | Schematic1(81k), Schematic2(62k), Description(96k), Parts(109k) |
| Unknown Studioamplifier V72 | 2*EF804S | SS | Schematic(22k) |
| Unknown microphone preamplifier V76 | 3*EF804S, E83F | SS | Schematic(39k) |
