White’s Electronics Classic 1 SL - Manual (Page 6)

White’s Pulsescan Field Manual
USER GUIDE TO PROSPECTING
by ...
Jimmy “Sierra” Normandi
The TDI is a complex piece of electronics.... but it is definitely not complicated to use. In fact the user instructions
can be boiled down to a very few important points of information. The mastering of the real potential of this instrument
will come from experimentation in the field and experience. Hopefully, enough people will ultimately contribute their
particular experiences to build a comprehensive field manual.
Quick Start for Prospecting for Gold:
The following settings will handle most all ground conditions
1) Set GEB Toggle to ON (Ground Balance & Variable Audio Activated)
2) Set Ground Balance Knob to 8 (this will balance most all ground)
3) Set Pulse Delay Knob to 10 (10 uS best for low conductive gold)
4) Set Gain Knob to 6 (may be increased as long as audio is stable)
5) Set Power Toggle to ON (this is a locking toggle, pull & switch)
6) Set Threshold Knob (adjust just past warble & into faint steady hum)
7) Set Target Conductivity Toggle to low (gold makes high tone)
8) Set Frequency Knob to 12 Noon (turn to correct any interference)
9) You can start detecting.....Sweep Slow and Low
Why do I start with the GEB Toggle ON ?
If you set the GEB toggle on, then you can detect whether or not the mineralization is severe or mild. If the miner-
alization is mild, then it would be mandatory to set the Ground Balance Knob at about 8 to 9 to prevent losing gold.
If the mineralization is heavy, a setting of 8 to 9 will cancel most ground anywhere. This is always done with pulse
delay of 10uS.
Why is the Pulse Delay set at 10 micro seconds ?
All metal targets give their best signal at 10uS. This goes for gold nuggets as well. You might ask then why can the
pulse delay be adjusted up to 25 uS. As you adjust the pulse delay to a larger number, small pieces of low conduc-
tive metal like small nuggets and small pieces of iron trash will be rejected and make it easier to hear higher con-
ductive metals like silver or large iron objects. This feature allows the PulsescanTDI to be used for relic and beach
hunting. In severe black sand it can also help to raise the pulse delay a little bit to help ground balance the detector.
If you do attempt to raise the pulse delay you must adjust the ground balance knob accordingly. Check the manual
for the correct procedure to balance.