= Picture
= Specifications
= Calibration
= Block DiagramsNostalgic Kits Central
| Codes |
| = Picture |
| = Specifications |
| = Calibration |
| = Block Diagrams |
| - = No data |
| Catalog Number | Model Number | Description | Notes | Picture | Specs | Documentation |
| 83 YX 754 | - | Hi-Fi preamplifier | - | ) |
- | - |
| - | - | Phono preamp | - | ) |
- | - |
| 83 YX 768 | KP-50 | Stereo Preamplifier | - | - | - | - |