| Manufacturer: | Collins |
| Model: | 820D-1 |
| Description: | AM Transmitter |
| Type: | Production Tests |
| Price: | $25 |
| Manufacturer: | Collins |
| Model: | 820D-1 |
| Description: | AM Transmitter |
| Type: | Type Accept Appl |
| Price: | $37 |
| Manufacturer: | Collins |
| Model: | 820D-1 |
| Description: | AM Transmitter |
| Type: | Operator, Service Manual |
| Price: | $64 |