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Hi hopefully someone may be able to help me, When i turn it on the buzzer constantly beeps, I have not attached a coil to it yet but does it just do that when there is no coil or will it be ok once a coil is attached? Thanks.
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they can be a bit variable - the construction is different on each persons build. Wire length to pots, some twist or shield pot leads. The likelihood its the lm393 phase shifters hooting as they have masses of gain. I see this on an IDX kit but, I don't pay attention to running kit without a coil, as they were not designed to do that. Chances are its fine when used correctly S -
You need a TX coil to generate the negative power supply...Comment
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