This circuit used in tape recorders was found in an Electronic Design. The components support general-purpose equivalents. The circuit serves to recover media.
This circuit is from a 90s Popular Electronics. It consists of a power source for bass amplifiers...
This timer up to 2 hours was found in a documentation of the year 2000. It uses only bipolar...
We have already presented this configuration obtained from other sources. This is from GE's 1977...