Engineering — Circuit: Darlington pair
Two transistors giving very high current gain.
Make it your own.
title "Darlington pair"
component V V1 9V at (0,1) orient h
component R R1 100k at (2,1) orient v
component Q Q1 at (4,1)
component Q Q2 at (6,1)
component R R2 100R at (8,1) orient v
component GND G1 at (4,4)
wire (0,1) (2,1)
wire (2,1) (4,1)
wire (4,1) (6,1)
wire (6,1) (8,1)
wire (4,2) (4,4)
wire (8,2) (8,4)
wire (8,4) (4,4)