This modulator circuit for low intensity signals is from old documentation. The integrated circuit used is uncommon today. The circuit operates with signals up to 2MHz.
This circuit can be used in PLL, frequency synthesizer in FM and VHF receivers, reducing a...
This circuit of an old publication produces the insect-like noise that drives them away. The...
This separator filter is from an old publication. The capacitor can have 10 to 47 uF of the...