The Tinker & Rasor Model PD-5
is a new high power output audio frequency oscillator designed for long distance surveys
of buried or submerged pipe or cable. Designed primarily for use with our New Model Mark V
Ranger dual frequency pipe and cable locator / short locator. This powerful, lightweight
accessory, with optional 12 volt rechargeable battery pack, snaps securely inside the
transmitter section of the Ranger.
The PD-5 features a built-in charger circuit
for recharging the battery pack from a vehicle cigarette lighter plug without removing the
battery. The PD-5 can also be powered directly from a 12 volt automotive battery the same
as our standard PDA and PDB model oscillators. It is completely compatible with our Mark
II, Mark III and Mark IV PD receivers.
A signal of 750 cps is generated by using a
power transistor switching circuit. In order that a maximum of energy can be transferred
from the pipe, the output of the oscillator is provided with taps so that voltages of 2,
3, 4.25, 6, 9, 12.5, 17.5, 25, 50 and 100 volts are available to match the load. An
interrupter signal is provided to make the signal more easily recognized.
