This RCA circuit has current limitation. The circuit is from an ancient American documentation making use of components of the era. The circuit includes the power supply.
The trip circuit for this alarm is given in CB16765E. The circuit uses common components and acts...
This circuit is from an old American publication from 1970, but it can be assembled with a BF494...
This circuit found in 1969 Popular Electronics is used to power a gas laser. The circuit produces...