Israeli Ring Generators
By Dave Hunter, ; posted September 6, 2014; hits 2038
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| Drawing of the current crop of ring generator modules showing up on eBay under the PowerDSine, Power Components Ltd., and AviHavElectronics names A current limiting resistor should be included on the output in series with the ringer of 220 or 330 ohms. This is to protect the chip from shorts. Using the resistor, I have never had one of these fail. Dave. |