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Set [RESONANCE] and [FREQUENCY] to maximum
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Set P1 to its mid-position
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Monitor the wiper of P4 and adjust it for 0.0V
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Set P2 to its mid-position
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Monitor [OUT] which should be oscillating. If not, back off the [FREQUENCY] control slowly until it does
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Set [RESONANCE] to '8'
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Adjust P2 (normally this will be a clockwise rotation) until the oscillations stop
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Set [RESONANCE] to maximum, the oscillations should restart
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Repeat steps (6) to (8) if needed
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Set [FREQUENCY] to its mid-position
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Adjust P4 for a frequency of approximately 200Hz