When the trigger is depressed I am getting 30v DC at the base of transistors T9 and T10 and 30v DC at the collector of T18.
This appears correct to me, although I am a little thrown off by it being DC - must be coming from the trigger via the connection from the main welding transformer?
These measurements are taken with the common terminal connected before the R51 resistor.
This appears correct to me, although I am a little thrown off by it being DC - must be coming from the trigger via the connection from the main welding transformer?
These measurements are taken with the common terminal connected before the R51 resistor.