| Manufacturer: | Collins |
| Model: | 51X-2 |
| Description: | Receiver |
| Type: | Operator, Service Manual |
| Price: | $32 |
| Manufacturer: | Collins |
| Model: | 51X-2 |
| Description: | Receiver |
| Type: | Overhaul Manual |
| Price: | $37 |
| Manufacturer: | Collins |
| Model: | 51X-2 |
| Description: | Receiver |
| Type: | Tech Training |
| Price: | $29 |