Filters
Circuit / Schematic diagram of | Description |
Band Pass | |
29.850 Band Pass Filter |
|
Single OpAmp Band Pass filter | |
Active Band Pass Filter | Time honored multiple feedback band pass (MFBP) type which uses capacitors of equal value and leads us to simplified calculations. |
24dB Band Pass Filter | Filter circuit along with power supply unit |
Band Pass IF Filter | |
Notch/Band Pass Filter | |
Multiple Feedback Band pass filter | |
Self Twining CW Filter | |
Low Pass | |
Low Pass Active Filter | OpAmp based low pass filter. |
SSB AF Filter | This is a simple filter that restricts the LF response a little as well providing quite a heavy HF roll-off. |
1 MHZ Low Pass filter | The filter circuit uses no inductor. |
Low pass filter | Filter tuned by a single resistor. |
High Pass | |
Second order high pass filter | |
Notch | |
Notch Filter | |
Adjustable Notch Filter | They can be used in your small pre-amp or amplifier project to filter out any HUM at 50 Hz or 60Hz . |
Variable Notch Filter | Variable notch filter with both high and low pass filter |
Helical Resonator Notch Filter | |
High Q Notch Filter | |
RC Notch Filter | |
Twin T Notch Filter | This allows us to remove the 50Hz hum picked up by, say, a microphone cord. |
Transient Noise Eliminator | |
Galaxy Noise Filter Schematic |