The power supply for this 1972 circuit must be symmetrical and the BC549 transistors. Care with the layout is important to avoid capturing tinnitus.
This circuit converts a high impedance signal into low impedance. The circuit has unit gain and...
Used in 1950s CW receivers, this type of circuit used germanium transistors. The circuit has...
Called super 8, this receiver for the medium wave range had its assembly described in an article in...