Radar detector (CB8628E)

Found in a 90s Electronics Engineering, this circuit makes use of components of the time. The critical component is the microwave sensor diode.

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1 to 20 MHz Colpitts Oscillator (CB6506E)
Found on Popular Electronics from the 1990s, this oscillator uses a general purpose transistor. The...
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This circuit was obtained from National Semiconductor documentation from the 1990s. The circuit has a...
H Bridge Current Monitor (CB5393E)
We found this circuit in a 2005 Linear Technology manual. Observe the component values and...