Learn how power amplifiers work, the common types, and what to lookout for when shopping for amps. You have to find out if the amplifier is a Class A/B analog amp or a Class D digital amplifier before ...

Power operational amplifiers (POPs) are becoming increasingly common in control circuitry. Their primary advantages over conventional amplifiers are reduced part counts, increased reliability, and ...

Teac is a Japanese hi-fi great with a history dating back to the mid-1950s. It’s best known for its high-end audio equipment, including reel-to-reel machines, cassette tape decks and amplifiers. Now, ...

When building a radio transmitter, unless it’s a very small one indeed, there’s a need for an amplifier before the antenna.

In systems with multiple supply voltages, operational amplifier power supplies must be established simultaneously with, or before, any input signals are applied. If this doesn’t happen, overvoltage ...

NEC has developed a GaAs-based power amplifier that achieves what it believes is the world’s highest output power of 10 mW in the 150-GHz band. Built with mass-producible GaAs technology, the device ...

Audio Note ignores trends again. The Oto SE 35 brings new transformers and PSU to the cult EL84 amp. Low power, big attitude. Hear it at AXPONA 2026.

The low-power MAX44267 operates from a single 4.5- to 15-V power supply. (Images courtesy of Maxim Integrated) In the perpetual quest to meet the demands wrought by today’s mobile applications, Maxim ...

Uniquely configured PA + SPDT integration delivers ultra-fast switching, reduced footprint and lower total system cost for ...

Low-power optical device achieves around 100 times amplification using just a couple of hundred milliwatts of input power ...