Hi, I need your help. I have an SVT Classic head and am not sure the exact year it is, as I bought it used. the serial # is: TCLDJ90032 FYI, it's the model that has the letters SVT writen in Blue and Red script on the face plate...not sure if that helps. I'm sure its the mid-90's. The Ampeg badge is on the top left corner of the grill. I ask cause I wanna sell it and would like to know the year. Thanks for your help.