Vintage Tube Amp

This is a LUX SQ-38D vacuum tube amplifier. Being a very old used item, it has scratches from use, please check the photos for the condition. The amplifier was previously used by a family member as a hobby, but has been stored in a warehouse for about 20 years. When connecting a PC to AUX-1 and connecting speakers to SPEAKERS L R’s 0 and 8? , sound was confirmed on R, but no sound was produced on L. When connecting a PC to AUX-2 and connecting speakers to SPEAKERS L R’s 0 and 8? , sound was produced on both L and R. When connecting a PC to TAPE and connecting speakers to SPEAKERS L R’s 0 and 8? , sound was produced from both L and R, but the sound was muffled and quite poor. Operation of PHONO 1 and 2 has not been confirmed. The MODE was tested in stereo only; other modes were not checked. The BALANCE was responsive.