Labels:text | diagram | technical drawing | plan | schematic | line OCR: d1 d3 + d2 ac ac - r2 d1= W04 Bridge d2= C106D SCR 2 2 d3=18V zenner r1=100kohm In From c1 To r2=4.7kohm The 2 c1=0.1 uF cap Real Modem To World 6 Touchfones Parts Available Through Rod Irving Electronics. 6