Gear-obsessive Joe Bonamassa has acquired guitars, amps, and pedals through some very strange means – but acquiring an amp ...

It was a choice that set the tone for a career full of left-field gear picks ...

Abstract: Electric circuits containing vacuum tubes form an integral part of various audio equipment, such as guitar amplifiers, certain equalizers, microphone preamplifiers, and dynamic range ...

Abstract: D-band high speed communication applications require an amplifier with broad bandwidth and high power. The vacuum high-power amplifiers, however, exhibit a limitation in bandwidth, while ...