This experimental shortwave transmitter is from a current kit that includes a contact array. The transmission frequency is given by the crystal. The coil can be made with 30 turns of yarn 38 in a 0.5 cm shape.
This experimental shortwave transmitter is from a current kit that includes a contact array. The transmission frequency is given by the crystal. The coil can be made with 30 turns of yarn 38 in a 0.5 cm shape.
