Triac - thyristor at this time measurement plastic tube into a conducting state thyristor will T435-600T, should show a slightly lower value than Ugt1. Next SCR, at the red bar constantly open G T2 premise and off thyristor BT136S-600E, for triggering high sensitivity, small tubes for holding current SCR T405-800T, at this time remains the guide tube state, the display is slightly larger than the trigger is turned on, but less than Ugt1 Triac - thyristor of the plastic tube measuring method with a small heatsink itself, usually it is highly connected with the T2, this feature can also be As a basis for determining T2. As verification, measured between T2 and the heat sink is 0V, so T2 judgment is correct. Then turn red stick T2, black bars any one of the remaining two poles connected, is displayed overflow SCR T435-600T, SCR, n Wal Electronics provided by Dongguan City is fertile Electronic Technology Co., Dongguan City is Wo Electronic Technology Co., Ltd (www.dgmydz.com) (www.dgmydz.com) strong, credible, FET and other industries in Dongguan, Guangdong has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead positive fertile electronic and you hand into the brilliant, for a better future!