Slow Start for Model Railroad (CB4723E)

This circuit simulates the actual departure of a train as the speed increases slowly. The power transistor must be heat sink mounted.

2 V Regulator (CB1160E)
This circuit is suggested by Texas Instruments in its Linear Circuits Applications. It is a...
Noise Generator (CB5432E)
This circuit generates both white and pink noise. The transistors can be BC548 and the power...
Component Tester (CB4313E)
This circuit consists of a simple continuity test with two transistors forming a relaxation...