Found in a 90s Popular Electronics, this circuit aims to find the voltage of a zener diode up to approximately 20 V. The transformer may have a lower current.
This oscillator has the output sine waveforms stabilized by a MOSFET. Equivalent types can be...
We found this synchrodyne receiver for the medium or short-wave band in the Radio Electronics...
This amplifier is suggested by Sanyo, for radio and recorder applications and makes use of a...