In the figure we have the receiver of a sequential remote control operating at a frequency in the range of 72 MHz, but that can be changed by modifying L1. This bobbin consists of 5 or 6 loops of 1 or 26 cm 1 coreless yarn. The RF shock consists of 50 turns of 32 wire in a 100k x ½ W resistor. The transmitter is given in CB4297E.
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