2024_11_tme

200 Hz Transistor Tunable Filter (CB1457E)

Details
Written by: Newton C. Braga

 This circuit is from a 1975 technical documentation on filters. The FET can be a BF245 and the bipolar BC558. The power supply must be symmetric. The components can be changed for operation at other frequencies. The rejection is 3 dB in a 10 Hz range.

 

  

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Datasheets


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