When switching an antenna between a transmitter and receiver, the 1N914 or 1N4148 can still be used, but with decreasing success as the frequency rises. It is common practice in VHF transcievers to use a PN junction diode, but with a lightly doped “Intrinsic” region between the P and N layers. The diode is called […]
Posts tagged RF
Spectrum Analyzer
3 Channel Spectrum Analyzer using LM3900, AN6884 3 Channel Spectrum Analyzer using LM3900, AN6884 Parts: R1 100K 1/4W Resistor R2 820K 1/4W Resistor R3, R14, R16, R18 2.2 Meg 1/4W Resistor R4, R5, R6 22K Pot R7, R8, R9, R25, R27, R29 10K 1/4W Resistor R10, R11, R12 680 Ohm 1/4W Resistor R13. R15, R17 […]
FM demodulator
FM Stereo Demodulator circuit using IC LM1800
Electronic circuit diagram audio amplifier AN7158N 5w
Electronic circuit diagram audio amplifier AN7158N 5w
Audio amplifier circuit diagram using transistor
Audio amplifier circuit diagram using transistor How to build a simple amplifier circuit
High current power supply circuit
High current power supply circuit using LM723, 2N6776
