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| Shottky diodes instead of germanium in old analog meter |
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| 001:
Hi I`m working with vintage AC voltmeter The rectifier is two germanium diodes blown with galvanometer I can buy new galvanometer but not new germanium diodes Can I replace germanium with new shottky? :-// |
| 001:
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| iMo:
The closest alternatives would be the BAT42/43/45/46. Unless you'll find the germanium ones, when pretty lucky :) PS: those BATxx diodes are small signal, max 30V or so, not to be used as rectifiers for higher voltages. Good around the galvanometer movement, imho. |
| duak:
Pease had an article on various diodes' forward voltage characteristics. I can't find the link to it now but I've attached a chart. One thing to note is that large area devices, such as rectiiers, have a forward leakage current that can be significant at low voltages. This current could affect the accuracy of the meter. |
| 001:
awesome! Thanx1 |
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