Note battery pack for 8 hours of use, transconductance RIAA phono preamp and 24 step vacuum stepped attenuator.

Note red button to disable battery pack when preamp disconnected from AC power for an extended period of time. When the preamp is switched off, an internal battery charger, recharges the batteries.

Note CNC machined mahogany base with cut-outs to clamp the DC blocking polypropylene capacitors (blue covered cans). Also a cut-out below the 24 step vacuum attenuator.

Note two versions of the first version of the ladder stepped attenuator; one is in a 19 mm thick rectangular acrylic enclosure, the other in a sealed metal enclosure.