inputs for Mike 1, Mike 2 and Gramophone; probably not intended for guitar use
though many ended up employed in that fashion. Separate volume controls and
shared bass & treble. Valve line-up is ECC83, 2 x EL84 and EZ81 rectifier
for the power stage and 2 x ECC83 for the pre-amp. The Speaker is an elliptical Celestion model.