This experimental receiver works with alternative sources of energy or a single cell of any type. The transformer is output from old transistor radios. The coil consists of 80 to 100 turns of wire 26 to 32 in a ferrite rod 10 to 15 cm long. The variable capacitor is an old transistor radio. The transistor can be of any type, preferably germanium. For handset or loudspeaker connected between terminals 5 and 6 interconnect terminals 3 and 1. For high impedance handset connect it between terminals 1 and 2.
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