This two-tube MW receiver was found in a Brazilian magazine of the years 60. The output tube is a 6AU6 and the antenna coil is formed by 100 turns of 28 AWG wire on a ferrite core and the oscillator coil is formed by 40 + 40 turns of 28 AWG wire on a cardboard tube have a diameter of 1.5 cm. The transformer has a secondary winding for 6.3 and 125 V.
