An AM transmitter is simple enough, in this case an oscillator and buffer driving a class C power amplifier. The modulation is applied by a transistor in series with the power amp, driven from an ...

Depending on who you talk to, the death of AM radio may be inevitable, or greatly exaggerated. In a media landscape dominated by podcasts and streaming, and promotion moving to social media ...

Exposure to Low-Energy Amplitude-Modulated Radiofrequency Electromagnetic Fields (LEAMRFEMF ... Table 2. Clinical studies of low-power AM RF EMF devices using a 27.12 MHz carrier wave in patients with ...

LED light bulbs are bright, energy-efficient and can be equipped with extra features, unlike regular bulbs. Whether you're looking for maximum brightness in darker rooms or you want a light source ...

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Phase II study of olaparib in patients with advanced pancreatic acinar cell carcinoma. This is an ASCO Meeting Abstract from the 2025 ASCO Gastrointestinal Cancers Symposium. This abstract does not ...

2010). In general, the results from HHSA clearly showed the amplitude spectrum of the 4 Hz slow oscillation, 32 Hz fast oscillation and its amplitude modulation at 4 Hz in a two-dimensional frequency ...

In the age of the LED light bulb, consumers have an unfathomable range of lighting options. This has, perversely, made the task of pleasantly illuminating our homes harder, not easier. The culprit ...

These days, homeowners have a myriad of options when it comes to selecting light bulbs for their homes. With emerging technologies increasing wattage and lowering electricity costs, you need to know ...

If your car came from the factory with halogen or HID bulbs, you’re going to need to replace them or upgrade them down the line. Both of these bulb types lose light output over time; thus, ...