Turret board constuction.

Turret board constuction ensures maximal physical contact between the the components and the board. This helps ensure a very rugged amplifier.

Ceramic tube sockets and shielded cable.

Ceramic tube sockets won't melt under stress like cheaper plastic tube sockets. Using sheilded wiring in critical locations helps ensure noise-free operation.

Teflon wiring, neatly tied down.

Paying attention to lead dress helps to keep the amp quiet, even at high gain levels. And Teflon wiring is resistant to the heat of a soldering iron, greatly easing maintainance.

Thick corner welded Aluminum chassis.

Aluminum is ideal for a chassis materail because it is non-magnetic, so it resists hum, lightweight, and doesn't rust like steel