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.
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.