Tubes / semiconductors by category - Manufacturer
Selected: His Master's Voice (Masters, HMV, H.M.V., Marconi); Hayes, Middlesex, GB
| Name | Maker | Year | User | Usage | Type | Base |  |
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|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| S33_HMV | His Master | Radio/TV-r | Power/Out | Triode, | Europe | 1 | – | – | – | – | – | – | ||
| S34_HMV | His Master | Radio/TV-r | Power/Out | Triode, | Europe | 1 | – | – | – | – | – | – | ||
| S70 | His Master | Radio/TV-r | Power-sup | Full-Wav | Europe | – | – | – | – | – | – | – | ||
3 tubes or semiconductors found.