This circuit has tone control, and its power depends on the supply voltage. The circuit is from the Philips integrated circuits manual from 1990.
This flasher was found in an old Hands On, but uses common components. The optocoupler can be...
The LM12 is a high-power operational amplifier capable of providing a 4 A output current with a 40...
The circuit presented was found in the Linear Applications Handbook of the National Semiconductoir of 1994....