OK , HERE IS THE NEW THREAD !!!!!!! TIME TO GET THAT "OLD BEAST" OUT OF YOUR CLOSET !!! TAKE A FEW SCREWS OFF THE COVER AND SEND A CLEAR PHOTO OF THE PCB "CIRCUIT BOARD" , AND THE REST OF THE UNIT, IF YOU LIKE. OR JUST POST SOME DETECTOR PHOTO'S OF DISCONTINUED MODEL'S YOU KNOW WORKED GREAT , BUT JUST SEEM TO DISAPPEAR ?????? I CAN THINK OF MANY DIFFERENT ONE'S . BUT I WILL TRY TO POST PHOTO'S TO BRING BACK OLD MEMORIES. AND HOPEFULLY THIS THREAD WILL BE A SUCCESS WITH EVERYONE'S HELP. AND ALSO DETECTOR PHOTO'S WITH "PIC CHIP'S OR "ATMEL'S WILL BE ACCEPTED , JUST TO SEE CIRCUIT DESIGN DIFFERENCES . THANK'S AGAIN EVERYONE...............EUGENE