Steam Engine Sound Generator MK134

Out Of Stock

Actually a sophisticated all-analog circuit that incorporates a noise source and filtering to generate the engine sound and a pushbutton-activated whistle. The schematic and assembly instructions are here. Runs on a 9-volt battery. A small speaker is included

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  • Product Code: 0025J
  • Availability: Out Of Stock
  • $3.95
  • Ex Tax: $3.95