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Telephone Ringer by IC KA2411
Telephone Ringer by IC KA2411


  Telephone Ringer by IC KA2411

Simple telephone Ringer with KA2411 IC.


Telephone Ringer by IC KA2411



Telephone Ringer by IC KA2411


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Telephone Ringer by IC KA2411 - Link


 

Build your own LC Meter and start making your own coils and inductors. This LC Meter allows to measure incredibly small inductances making it perfect tool for making all types of RF coils. LC Meter can measure inductances starting from 10nH - 1000nH, 1uH - 1000uH, 1mH - 100mH and capacitances from 0.1pF up to 900nF. The circuit includes an auto ranging and "Zero Out" function to make sure the readings are as accurate as possible ... [more]


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