This flasher for incandescent lamps was found in Radio Electronics magazine from July 1968. The frequency and duration of the pulses are adjusted in R1 and R3 depending also on C1.
We found this telephone amplifier in a European publication from the 1980s. The transistor can be...
In figure 1 we have an application for NLAS5113, a new device from on Semiconductor...
We found this circuit in a Popular Electronics from the 90s. Transistors can be modern...