File:Sinclair ZX Spectrum Issue 3 DC-DC converter circuit.png
Summary
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Crop of Sinclair's ZX Spectrum Issue 3 circuit diagram showing the DC-DC converter (TR4, TR5, the coil, D15, C44, C45, the −5 V rail through C46, D11, R55, D16 and D12, and the −12 V output) with the 7805 output capacitor C34 and the box listing the Issue 3B changes. Cropped at full resolution for Sinclair ZX Spectrum DC-DC Converter Repair.
Source
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Cropped from File:Sinclair ZX Spectrum Issue 3 circuit diagram.png, itself a copy of "ZX Spectrum Issue 3 - Schaltbild.gif" in the Sinclair ZX Computers Archive.
Author
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Sinclair Research Ltd
Licence
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Copyright Sinclair Research Ltd. Not freely licensed. Hosted for preservation and repair reference.
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 10:45, 25 October 2026 | | 1,230 × 751 (58 KB) | Josh (talk | contribs) | Crop for the DC-DC converter repair guide |
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