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!).

Index Oscillators

1
455 kHz Oscillator

455 kHz Oscillator

Figure 882 : 455 kHz Oscillator


2
555 Square Wave Generator

555 Square Wave Generator

Figure 1167 : 555 Square Wave Generator


3
BFO Oscillator

Beat Freq Oscillator AM-SW Radios

Figure 927 : Beat Freq Oscillator AM-SW Radios


4
Butler Oscillator

Butler Oscillator Circuit

Figure 928 : Butler Oscillator Circuit


5
Clapp Oscillator

Clapp Oscillator for 100 kHz

Figure 932 : Clapp Oscillator for 100 kHz


6
Colpitts Oscillator

Colpitts Oscillator

Figure 933 : Colpitts Oscillator


7
Crystal Oscillators

Crystal Oscillator 1

Figure 937 : Crystal Oscillator 1


8
Crystal Oscillators

Crystal Oscillator 2

Figure 938 : Crystal Oscillator 2


9
Crystal Oscillators

Crystal Oscillator 3

Figure 939 : Crystal Oscillator 3


10
VXO

Crystal Oscillator With Adjustable Frequency

Figure 940 : Crystal Oscillator With Adjustable Frequency


11
Crystal FM Oscillators

Crystal Oscillator With FM Capability

Figure 941 : Crystal Oscillator With FM Capability


12
Darlington Transistor Oscillator

Darlington Transistor Oscillator

Figure 947 : Darlington Transistor Oscillator


13
Crystal Selector

DC-Switched Crystal Oscillator

Figure 948 : DC-Switched Crystal Oscillator


14
Crystal Oscillators

FET Quartz Crystal Oscillator

Figure 954 : FET Quartz Crystal Oscillator


15
VXO

FET VXO Circuit

Figure 955 : FET VXO Circuit


16
FM Oscillator

FM HF Oscillator With NO Varactor

Figure 959 : FM HF Oscillator With NO Varactor


17
FM Oscillator

Freq Modulated Oscillator

Figure 963 : Freq Modulated Oscillator


18
Crystal Doubler Oscillators

Frequency Doubler and Crystal Oscillator

Figure 964 : Frequency Doubler and Crystal Oscillator


19
GBTC Oscillator

Grounded Base Tuned Collector Oscillator

Figure 970 : Grounded Base Tuned Collector Oscillator


20
Hartley Oscillator

Hartley Oscillator

Figure 972 : Hartley Oscillator


21
VFO

Jfet Variable Freq Oscillator

Figure 982 : Jfet Variable Freq Oscillator


22
AM Radio Oscillator Driver

Medium Wave Oscillator Driver

Figure 1020 : Medium Wave Oscillator Driver


23
Hartley Oscillator

Modified Hartley Oscillator

Figure 997 : Modified Hartley Oscillator


24
100 kHz Calibration Oscillator

Oscillator UJT 100kHz Calibration

Figure 1098 : Oscillator UJT 100kHz Calibration


25
Radio Frequency (RF)

Radio Frequency (RF) Oscillator

Figure 322 : Radio Frequency (RF) Oscillator


26
Rienartz Oscillator

Reinartz Oscillator

Figure 1037 : Reinartz Oscillator


27
VFO

Remote Oscillator High Freq VFO

Figure 1040 : Remote Oscillator High Freq VFO


28
CPO

Simple Code Practice Oscillator

Figure 1062 : Simple Code Practice Oscillator


29
UHF Oscillator

Tunable UHF Oscillator

Figure 1076 : Tunable UHF Oscillator


30
Tuned Collector Oscillator

Tuned Collector Oscillator

Figure 1078 : Tuned Collector Oscillator


31
VFO

Universal VFO

Figure 1099 : Universal VFO


32
VLF Oscillator

VLF LC Oscillator

Figure 1104 : VLF LC Oscillator


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