This is the power step of the previous circuit. Output transistors must be mounted on good heat sinks. The circuit is from documentation from the 60s.
Other series amplifiers such as the MC3301, MC3401 and LM2900 can be used on this circuit. We...
The sensor diode used in this circuit is the common type of germanium. Experiments may be made...
This circuit adds a beep to turn on with car flashers that do not have this feature. A 47 ohm to...