This amplifier stage without an output transformer was found in Radio Electronics magazine from October 1963. The supply is 12 V, and the output is 8 or 16 ohms.
The project presented consists of a flasher alternated with relay, which can be installed at the...
We found this inverter in a Popular Electronics from the 1980s. The output is not perfectly...
The frequency of this oscillator depends on the coil and capacitors C1 and C2. For 1 MHz L1 is...