Triplett Hound 3 – PN: 3392 - Manual (Page 12)

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In some situations, the HOUND 3 may have a tendency to
“feedback” at high Volume / Sensitivity settings. The feed-
back may sound like a howling or squealing sound coming
from the speaker. To suppress this effect, the Volume / Sen-
sitivity thumbwheel can be reduced, or the user may find
that touching an ungloved finger to the earphone jack may
help.
6.6: LED Headlights (C)
The white LED headlights provide light for performing tests
in poorly lit areas. The LEDs do not interfere with the target
signal. If fluorescent lighting is causing a lot of interference
with the target signal, the user may find it helpful to turn off
the lighting temporarily, and use the non-interfering illumi-
nation provide by the LEDs.
6.7: Conductive Plastic and Metal Probes (A & B)
Two probes are provided with the HOUND 3. They are easily
changed by screwing and un-screwing them from the tip of
the HOUND 3.
The metal conical probe is rugged and durable. If working
with low voltage wiring, the metal probe can provide a sig-
nificant increase in signal loudness when the metal in the
target wire, or a metal contact connected to the target wire,
is touched. This sometimes aids in identifying the target wire.
For example, the metal probe is often used to drag along the
contacts on a telephone punchdown block. In situations
where the metal probe may short a circuit, leading to dis-
ruption of the circuit operation, or may short a power cir-