(2) Tested NOS 6H6 USA Military VT-90 RCA Radiotron Vacuum Tube Vintage Radio
Specifications
| Brand | RCA |
| Type | Vacuum Tube |
| Model | 6H6 |
| Country Of Origin | United States |
Tube Type: 6H6. All tubes that read bad on the initial readingare discarded. Tubes that read significantly lower on the life test versus the initial reading likely have exceeded their useful life. All tubes that read bad on the life test or read 25% lower than the normal test reading are discarded.