Tubes / semiconductors by category - Manufacturer
Selected: PTR - Polskie Towarzystwo Radjotechniczne; Warszawa
| Name | Maker | Year | User | Usage | Type | Base |  |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| RM_Poland | PTR - Pols | Universal | Triode, | Europe | – | 1 | – | – | – | – | – | |||
| SRM | PTR - Pols | Radio/TV-r | Universal | Triode, | Europe | – | 1 | – | – | – | – | 4 | ||
2 tubes or semiconductors found.