Germanium NPN Transistors (Ge-N ) Selection by Voltage
| Article | Volt | Amp | Description | Case |
| 2N1304 | 25 | 0.300 | 0.15W 10MHZ | TO39 |
| AC187 | 25 | 1.000 | 1W | TO1 |
| AC187K | 25 | 1.000 | 1W COOLED | TO1K |
| AD165 | 25 | 1.000 | 6W | TO66 |
| AC127 | 32 | 0.500 | . | TO1 |
| AC176K | 32 | 1.000 | 1W | TO1K |
| AD161 | 32 | 1.000 | 6W | TO66 |
| AC141K | 32 | 1.200 | 1W | TO1K |
Germanium NPN Transistors (Ge-N ) Selection by Current
| Article | Volt | Amp | Description | Case |
| 2N1304 | 25 | 0.300 | 0.15W 10MHZ | TO39 |
| AC127 | 32 | 0.500 | . | TO1 |
| AC187 | 25 | 1.000 | 1W | TO1 |
| AC187K | 25 | 1.000 | 1W COOLED | TO1K |
| AD165 | 25 | 1.000 | 6W | TO66 |
| AC176K | 32 | 1.000 | 1W | TO1K |
| AD161 | 32 | 1.000 | 6W | TO66 |
| AC141K | 32 | 1.200 | 1W | TO1K |