Matching antenna (CB7458E)

The coil and sockets of this circuit found in a QST depend on the frequency band that is intended to be tuned.

Infrared Detector (CB1560E )
The circuit shown in the figure can be used to detect the operation of infrared sources whose...
Alternative RIAA Equalizer (CB25698E)
We found this circuit in the March 1993 issue of Electronis Now magazine. The circuit uses common...
Voltage Doubler (MSB021E)
Figure 1 shows a hal-wave voltage doubler operating with the Power-supply voltage. Output current...