File:1930 Courtenay Junior.jpg
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Summary
| Description |
English: In 1930, William Marks developed his first commercial radio model, sold through Stewart Hardware Ltd in Courtenay Place, Wellington, New Zealand. It had a crystal set and three valves: a rectifier, and a two-valve amplifier. It used an external speaker. |
| Date | |
| Source | Own work |
| Author | Essentialtech |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 02:41, 8 October 2023 | | 4,700 × 2,761 (1.54 MB) | Essentialtech | Uploaded own work with UploadWizard |
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