radio
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Radio Circuit Diagrams
FM radio (may be used with PC) Schematic Circuit Diagram
TECHNICAL CHARACTERISTICS: The stabilized tendency of catering: Vcc=9~12V The frequency of reception: 88~108MHz Consumption: 100mA Materially: [color=green]The resistances are 1/4W.[/color]…
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Radio Circuit Diagrams
USB Radio Terminal Schematic Circuit Diagram
In the January 2009 issue of Elektor we saw how straightforward it is to connect a lowcost RFM12 868 MHz…
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Amplifier Circuit Diagrams
Audio Source Enhancer Schematic Circuit Diagram
Vinyl or CD: which has the better sound? It’s a question still hotly debated among audiophiles everywhere. We will try…
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Amplifier Circuit Diagrams
Software-defined Valve Radio Schematic Circuit Diagram
Software-defined radio (SDR) is all the rage. The idea is this: a very simple radio receiver is given topof- the-range…
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Radio - Wireless
Radio Control Signal Frame-rate Divider Schematic Circuit Diagram
Model radio-control equipment has evolved considerably over the years, and the humble servo has grown from the 1.5 ms at…
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LCD-LED Display
Radio Remote Control for PDAs and Smartphones Schematic Circuit Diagram
On his website, under the title ‘AVR Blue Remote, the author describes (in German) a Bluetooth-based remote control unit featuring…
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Oscillators Circuit Diagrams
Simple Oscillator / Pipe Locator Schematic Circuit Diagram
Sometimes the need arises to construct a really simple oscillator. This could hardly be simpler than the circuit shown here,…
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Amplifier Circuit Diagrams
Tuned Radio Frequency (TRF) Receiver Schematic Circuit Diagram
Superheterodyne receivers have been mass-produced since around 1924, but for reasons of cost did not become successful until the 1930s.…
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Amplifier Circuit Diagrams
Shortwave Monitor Schematic Circuit Diagram
This broadband AM receiver enables you to ‘monitor’ the shortwave radio band. The circuit has been deliberately designed to have…
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Amplifier Circuit Diagrams
Single-Chip VHF RF Preamp Schematic Circuit Diagram
Here is a high performance RF amplifier for the entire VHF broadcast and PMR band (100-175 MHz) which can be…
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