Perhaps nothing added quite so much to the charm of vacuum tube circuits from back in the heyday of the vacuum tube as did the “Magic Eye” indicating tube. With the ghostly green glow of its circular ...

[M Caldeira] had a project in mind: replacing a common vacuum tube with a solid-state equivalent. The tube in question was an EABC80 or 6AK8 triple diode triode. The key was identifying a high-voltage ...

All electric guitar players know that the amplifier is just as important — if not more — as the guitar itself for shaping your sound. Each major amplifier model has unique dynamics and tonal ...

The McIntosh C12000 Preamplifier goes both ways; tube and solid state and is the perfect companion to the MC3500 MMKII Tube Amplifier. The hardest part of our recent McIntosh factory tour was keeping ...