early 90's. Now all I can remember (and it may jog someone elses memory) is that the case was barely as wide as the fets (it had 5-6 of them).
Picture is you can something shaped like this in general.....
except imagine it as a black case and only as wide as a fet but about as long as say 10 fets.
I hope tha makes sense and if it does I'd be interested in knowing what model it may have been and specs from back in the day.
Thanks in advance to all with a better memory than me.