Tube amplifiers tend to fetch top dollar because ... Modeled after the original Supro amps of the 1950s, it boasts a vintage-style, 6L6-equipped, Class A power amp. The Supro Delta King cranks ...

The tech news channels were recently abuzz with stories about strange signals coming back from Voyager 1. While the usual suspects jumped to the usual conclusions — aliens!! — in the absence ...

There are plenty of tube amplifiers now being manufactured, with a popular choice being headphone amplifiers that use a tube as a gain stage followed by an op-amp as a buffer with a low impedance ...