This is the receiver for the previous circuit found in the November 1991 Radio Electronics magazine. The frequency is 2.2 MHz determined by the coils.
This circuit was obtained from a Popular Electronics of the 90s. The SCR is of any type and the...
This 1967 Motorola circuit is intended for operation with signals up to 250 MHz delivering a 50 MHz...
This interesting AC / AC converter is only indicated for resistive loads and was obtained in a...