Tubes / semiconductors by category - Base
Selected: Jumbo 4-pin bayonet (1918)
| Name | Maker | Year | User | Usage | Type | Base |  |
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| A7_Westinghouse | Westinghou | Transmitte | Power/Out | Transmit | Jumbo 4 | 1 | 1 | – | – | – | – | – | ||
| A-21 | Amperex; N | Transmitte | Power/Out | Transmit | Jumbo 4 | – | 1 | – | – | – | – | – | ||
| A-331 | Amperex; N | Transmitte | Power/Out | Transmit | Jumbo 4 | 1 | 1 | – | – | – | – | – | ||
474 tubes or semiconductors found. (maximum 3 results are displayed) Members can see up to 500 results.