2024年1月2日 · Here a single transistor acts as a receiver, demodulator, amplifier to constitute a wonderful tiny FM radio. It's basically based on a superregenerative audion receiver circuit where the use of minimal components becomes the main feature of the unit.

2020年10月7日 · This is probably the simplest radio receiver circuit that one could ever imagine of making. The circuit is so simple that it could be finished assembling within a few minutes and you are already listening your favorite programs over it.

2024年1月2日 · Simple AM radio Circuit using FET. Despite having so few parts, the following little AM broadcast band receiver circuit operates astonishingly well. It is possible to remove the tuning coil [L1] and capacitor (CV11) from an obsolete transistor radio; …

2009年8月17日 · Here is the circuit diagram of a simple radio that uses one transistor and few other passive components.The C6 and L1 forms a tank circuit which picks up the signal from your desired radio station.Diode D1, capacitor C2 and resistor R1 does the detection of the picked signal.The detected signal is coupled to the base of Q1 through capacitor C3 ...

2024年1月7日 · Amplitude Modulation Radio or AM Radio is a broadcasting technology that modulates the amplitude of Carrier Signal to carry information. AM radio waves typically cover the frequency range of 530 kHz to 1700 kHz in the medium frequency (MF) band. Carrier signal of Commercial AM Radio Channel will lie between these range.

2023年8月16日 · Here’s a simple FM receiver circuit with minimum components for local FM reception. Transistor BF495 (T2), together with a 10k resistor (R1), coil L, 22pF variable capacitor (VC), and internal capacitances of transistor BF494 (T1), comprises the Colpitts oscillator .

2020年3月9日 · When integrated with a loudspeaker and an amplifier (for example an LM386 amplifier), this simple FM radio circuit could very easily be constructed into a extremely sleek and stylish pocket radio. Circuit Diagram. Test Point Voltages. L1 = 10 turns CuL, ⌀ 0.5 mm (SWG 25), d = 3 mm. L2 = 13 turns CuL, ⌀ 0.5 mm (SWG 25), d = 5 mm.

2020年8月5日 · In this tutorial, we are demonstrating a project of a “simple FM transmitter” which is easy to make and does not require any expensive components. FM transmitter is a low-power FM radio transmitter that communicates a signal from a sound gadget to a standard FM radio.

For more crystal radio circuits, simple one-transistor radios, and more advanced low transistor count radios. Regency TR1: First mass produced transistor radio, 1954. The circuit in the figure below is an integrated circuit AM radio containing all the active radio frequency circuitry within a …

Here is a simple circuit for a one transistor Audion type radio powered by a 1.5 V battery. It employs a set of standard low-impedance headphones with the headphone socket wired so that the two sides are connected in series thus giving an impedance of 64 Ω.