A custom-built, solar-powered Admiral 7M radio, featuring a Hoffman solar panel, was likely created by a hobbyist. The specific year and details of its creation remain unknown.
| Company | Admiral |
| Year (approximate) | 1950s |
| Cell Type | Monocrystalline, Radio |
| Part No. | 7M |
| Primary Use | Experimental, |
| Acquisition | Purchased |
