By aw Thursday, May 19, 2011 Relay Switch 8 Relay Control Circuit 8 Relay Control Circuit R1-8=4.7 Kohms T1-8= BD139 (R1-8=15 Kohms if T1-8=BD679) RL1-8=6V-24V dc Relay D1-8=1N4148
By aw Monday, May 16, 2011 Microcontroller Relay Control Relay Circuit with 9 Second See figure below its Control Relay Circuit Schematics.