Eugene and gang, There was about 300 of the "Teletype 900" tickers at the Paterson, NJ, warehouse. They were designed using Model 37 technology and that sure explains why they were short-lived. Any Model 37 I ever met had a genetic desire to self-destruct. They are on their way to becoming tune fish cans now! (Although I understand the scrap metal guys don't like the metal in TTY's.) Jack WA2HWJ