Tube Bases
| Base Name | Common Name | # Pins | Pin Layout | Notes |
| Noval (9-Pin Miniature) | B9A | 9 | 17.45mm (11/16″) circle, 8×36° then 72° spacing between pins 9 & 1 | 1960’s-1970s |
Tube Bases
| Base Name | Common Name | # Pins | Pin Layout | Notes |
| Noval (9-Pin Miniature) | B9A | 9 | 17.45mm (11/16″) circle, 8×36° then 72° spacing between pins 9 & 1 | 1960’s-1970s |