This circuit is part of a tube experiment kit that includes power source and protoboard. The kit is actual and the coil can be made with 30 + 60 turns of 28 AWG wire in a 1cm diameter tube.
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This circuit is part of a tube experiment kit that includes power source and protoboard. The kit is actual and the coil can be made with 30 + 60 turns of 28 AWG wire in a 1cm diameter tube.