Triplett Fox & Hound Jr. – PN: 3375 - Manual (Page 21)

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HOUND Jr is working is to move it toward an
operating fluorescent light and note that the
buzzing sound gets louder, and the brightness
of the LED increases. When used out-of-doors,
away from power wires, the HOUND Jr may
make only a slight hissing noise.
Before attempting to trace a wire/cable, with the
HOUND Jr’s tip positioned near the leads of the
FOX Jr, turn on the FOX Jr by rotating its
thumbwheel from the off to on position. The FOX
Jr’s warbling signal should be heard coming
from the HOUND Jr. Adjust the thumbwheel on
the FOX Jr to peak the loudness of the signal
received on the HOUND Jr.
Connect the FOX Jr to the target wire/cable in
the desired fashion. Once again, test the FOX
Jr’s output signal by bringing the HOUND Jr’s
tip near the FOX Jr’s alligator clips (this is called
“probing” the wire/cable). The warble TONE
should be heard from the HOUND Jr’s speaker.
If the warble TONE is not heard, the wire/cable