File:Zobel original drawing.PNG
Original file (1,528 × 406 pixels, file size: 88 KB, MIME type: image/png)
Summary[edit]
Description |
Impedance matching circuit showing m-derived topology |
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Source |
US Patent 1557229 |
Date |
13 October 1925 |
Author |
O J Zobel |
Permission (Reusing this file) |
See below.
|
Licensing[edit]
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File history
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 01:16, 12 April 2008 | 1,528 × 406 (88 KB) | Spinningspark (talk | contribs) | ||
00:20, 11 April 2008 | 1,539 × 405 (27 KB) | Spinningspark (talk | contribs) | Author: O J Zobel Source: US Patent 1557229 {{PD-US-patent}} |
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- File:Zobel original drawing.PNG from Commons