This simple two-transistor FM transmitter was found in the November 1991 issue of Radio Electronics magazine. The circuit has a 2 + 2 turn coil of 28-gauge wire with a diameter of 1 cm.
The instrument of this field strength meter, from a 1970s publication, can be a 200 uA...
We found this circuit in the ON Semiconductor Thyristor Manual although similar configuration can be found...
A very interesting integrated circuit for step-down converter designs (voltage reducers) with an...