Labels:barrier reef | bulletin board | clock | crt screen | door | earth | poster | trade name OCR: Phone -In-Use Ind icator Vol t Bettery Phone line +-4 R. 680K 100 O hm s auoyd line - 2N3906 Not es: Circui 1 umi nat an LED when any phone ex 2N390 LED t ensi Uo of -hook LED shou1 d illumi nate cir cui of not Tf ed LED phone line ext ngui DP sh wher phone -hook f or vo1 acr oss the 680K res pol ar i ons t o phone line. Bat t tery Jr awn bu Bi1 Bowden Volt euoud 686k check UMeJ Bill Bouden