1959 Magnavox concert grand. This was electronically restored before I bought it six years ago. Sounds absolutely incredible. The turntable will need some work. Currently stuck on one speed and manual.
The stereo audio amplifier consists of two amplifier chassis, one for the left channel and one for the right, each using 12 tubes apiece. Each channel is bi-amplified, with separate amps for bass and treble amplification. The treble amplifier of each channel is driven by two 6V6GT tubes in push-pull. The bass amplifier is driven by six 6V6GT tubes in triple-push-pull.
The speaker complement consists of two 15-inch round electrodynamic woofers, and two 4x10-inch rectangular electrodynamic 1000-cycle horns. All speakers are forward-facing. Left and right channel speakers are sealed in ported enclosures on the left and right end of the unit. There are outputs provided to drive external speakers or audio outputs, and there is a switch that allows selection of various combinations of internal or external speakers or audio outputs.