DYNAMIC MEASUREMENTS ON ELECTROMAGNETIC DEVICES 1441 



•♦•250V 



START 



(JO 



? lljt- — 



STOP V y I 



12AL5 



B OR C MEMORY AND RELAY CONTROL CIRCUIT 



R 500 



L 500 — 



< 47 

 910K>^^p.-p 



5687 



TO 

 A3 AND A4 



'^-- Ai AND A2 

 RELAYS 



/V 



47 



10 K 



620 K 



A RELAY CONTROL CIRCUIT 



Fig. 16 — Memory and relay control circuits. 



