Eighth-Order Filter (CB6741E)

This low pass filter has attenuation of 5.5 dB and the frequencies depend on the values of the components in the case 1 kHz.

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100 kHz Calibrator (CB5607E)
This circuit was obtained from Popular Electronics of the 1990s. The circuit uses common...
Transistor Tester (CB1409E )
The indicator instrument of this transistor tester, from an Argentine publication of the 1970s,...
Linear sweep generator (CB8942E)
Found in 969 documentation, this circuit generates sweep signals from 1 Hz to 100 kHz. The...