MODEL 1448 VOICE OF MUSIC AMP. THIS TURNS ON AND THE TUBES LIGHT UP.THE ON LIGHT IN THE FRONT WORKS FINE BUT HAS BEEN IN STORAGE AT MY HOUSE FOR ALONG TIME.I DO NOT HAVE ANY WAY TO TEST. WAS WORKING FINE WHEN STORED.I DID NOT TRY TO CLEAN THE AMP. DID NOT WANT TO DAMAGE.CHECK OUT THE PICTURES. SOLD AS IS UNTESTED