eh là bas ma
Well-known member
Hello,
I've built a pacifier and I am wondering if my voltages are ok on the three transistors.
On my build I read
Q1
C = 2.6V
B = 0.647V
E = 0
Q2
C= 360mV
B= 0.5V
E= 0
Q3
C = 9.19V
B = 4.19V
E = 3.6V
Q1 & Q2 values seem strange, so I removed Q1 from the sockets, and measured voltage at the pads :
Q1 without transistor :
C= 8.22V
B = 8.22V
E = 0V
I took the pinout from this picture :
Thank you for your help.
I've built a pacifier and I am wondering if my voltages are ok on the three transistors.
On my build I read
Q1
C = 2.6V
B = 0.647V
E = 0
Q2
C= 360mV
B= 0.5V
E= 0
Q3
C = 9.19V
B = 4.19V
E = 3.6V
Q1 & Q2 values seem strange, so I removed Q1 from the sockets, and measured voltage at the pads :
Q1 without transistor :
C= 8.22V
B = 8.22V
E = 0V
I took the pinout from this picture :
Thank you for your help.