Modifications of Pfeifer's Bird-Control Apparatus1
- R. C. Rosenau and
- R. V. Worstell2
Pfeifer's bird-control apparatus was modified and tested in 1967. Several safety feasures were incorporated. Also, an industrial timer was added as an interrupter to break the circuit from a high voltage transformer at regular, short intervals providing the arcing and snapping needed in a dry climate.Please view the pdf by using the Full Text (PDF) link under 'View' to the left.
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