Schematics and Circuits Index
A brand new different way to view the schematics.
This is just a list of old schematics, some with a BOM, mostly used as a reference design resource. NOTE: There is no instruction on how to build any of this stuff. You must use your own wits (or just Google it!).
1 Antenna Filters
Figure 1165 :
2 Butterworth Filters
Figure 859 : 1 kHz 4th Order Butterworth Filter
3 Butterworth Filters
Figure 864 : 120kHz 4th Order Butterworth Filter
4 Butterworth Filters
Figure 874 : 20 kHz Butterworth Active Filter
5 Band-pass Filters
Figure 899 : Active Band-pass Filter Circuit
6 CW Audio Filters
Figure 900 : Active CW Audio Filter
7 High-pass Filters
Figure 901 : Active High-pass Filter
8 Low-pass Filters
Figure 902 : Active Low-pass Filter
9 Notch Q
Figure 903 : Adjustable Q Notch Filter
10 Band-pass Filters
Figure 925 : Band-pass Filter
11 Combination Filters
Figure 934 : Combination Filter
12 Comb Filters
Figure 950 : Digital Comb Filter
13 Notch Q
Figure 976 : High Q Notch Filter
14 High-pass Filters
Figure 975 : High-pass Active Filter
15 High-pass Filters
Figure 979 : High-pass Amplifier
16 High-pass Filters
Figure 978 : High-pass Filter
17 Low-pass Filters
Figure 988 : Low-pass Amplifier
18 Programmable Filters
Figure 1022 : Programmable Analog Filter
19 Notch RC
Figure 1034 : RC Notch Filter
20 Low-pass Filters
Figure 1053 : Sallen KEY Low-pass Filter
21 High-pass Filters
Figure 1054 : Sallen-KEY High-pass Filter
22 SAW Filters
Figure 1055 : SAW Filter Impedance Matching Preamplifier
23 Second-Order Voltage-Controlled
Figure 1057 : Second-Order Voltage-Controlled Filter
24 State Variable Filters
Figure 1066 : Single 3.3V Supply 4 Pole State Variable Filter
25 State Variable Filters
Figure 1067 : State Variable Filter
26 Band-pass Filters
Figure 1080 : Two OP-AMP Band-pass Filter
27 Low-pass Filters
Figure 1105 : Voltage Coltrolled Low-pass Filter
28 VSB
Figure 1106 : VSB Filter for LM2889
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