Dating from 1963, this is a Moody GA35 amplifier. In this amp the speaker is a high-frequency unit which simply is added (via a filter capacitor) to the 2x12 Radial Beam speakers. The reverb is a standard type spring tank, and operates as per normal, blending the reverb signal with the 'dry' signal as the level knob is wound up. The amp measures 73cm(W) x 52cm(H) x 26cm(D) and weighs 24kg.