Hit Buffer Board #3 - final production board pcb version 2.1 assembled at the same time as #4 in March 2000 to validate new pcb full test in Pisa/Trieste April 2000 tested at lenght with #4 before releasing production Returned to Eclipse in May 2000 to replace LED's resistor with final values. Returned fro Eclipse to Trieste on July 3rd. Tested with random test on July 10 (20min). Board O.K.