| Close or identical |
2C51, 396A, 6385, 6854, 6CC42, CV2831 |
| Different rating or performance |
2C51L, 5670, 5670WA, 6N3PE*, CK5670, CK5670WA, CV2575, CV4013, CV5894, CV8247, GL5670 |
| Different filament voltage |
18C51 |
Warning: Substitutes are given as a guide only - please refer to original manufacturers data sheets to ensure that a substitute is safe and appropriate for your application. |