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Sticky: New PI-Tech forum by Carl-NC Started by Carl-NC, 06-15-2021, 04:20 AM	22 responses 4,178 views 1 like	Last Post by Qiaozhi 08-10-2025, 09:31 AM
built a surf pi - design using irf 9640 for pulsing the coil, need help calibrating it. by steve36 Started by steve36, 04-30-2026, 03:08 PM	8 responses 248 views 0 likes	Last Post by ivconic 04-30-2026, 05:19 PM
HELP Choosing a design for first digital PI build by gdane Started by gdane, 01-14-2026, 12:12 AM	56 responses 1,731 views 0 likes	Last Post by eduardo1979 04-29-2026, 01:11 PM
Fisher F-Pulse / Teknetics Tek-Point Pointer Performance by GoldenKiwi Started by GoldenKiwi, 12-09-2024, 12:39 AM	25 responses 1,014 views 0 likes	Last Post by ivconic 04-28-2026, 08:19 PM
sniffer xr71 by delisinyor3 Started by delisinyor3, 06-09-2025, 04:36 PM	8 responses 682 views 0 likes	Last Post by kt315 04-27-2026, 09:23 PM
Signal Interpretation Layer for PI Metal Detectors by benghaouti Started by benghaouti, 04-27-2026, 04:46 PM	6 responses 193 views 0 likes	Last Post by Carl-NC 04-27-2026, 08:34 PM
Does anyone know anything about this old Pi detector circuit? by GeoMax Started by GeoMax, 04-25-2026, 08:18 PM	14 responses 386 views 0 likes	Last Post by algan 04-27-2026, 06:56 AM
Surf pi detector-MOD by scs-bg Started by scs-bg, 04-23-2025, 07:44 PM	151 responses 5,982 views 1 like	Last Post by Detectorist#1 04-26-2026, 05:48 AM
Pulse Star II (first analog version) by ivconic Started by ivconic, 11-08-2019, 11:39 AM	589 responses 29,772 views 1 like	Last Post by 55323352 04-23-2026, 04:17 PM
Why are PI detectors made with MCUs rarely seen? by hisun Started by hisun, 04-22-2026, 02:54 AM	3 responses 183 views 0 likes	Last Post by hisun 04-23-2026, 04:45 AM
Pulse star 2 pro by saidioscar Started by saidioscar, 09-15-2023, 06:01 AM	30 responses 2,802 views 0 likes	Last Post by 55323352 04-20-2026, 07:21 PM
Sandbanks by symon mark Started by symon mark, 01-17-2003, 05:19 PM	221 responses 19,426 views 1 like	Last Post by gerson 04-19-2026, 08:12 PM
Schematics for Eric's Aquapulse and Superscan detectors available? by Thomas Weissbach Started by Thomas Weissbach, 09-11-2025, 01:35 PM	7 responses 647 views 0 likes	Last Post by nasios 04-18-2026, 08:46 AM
Schematics for Superscan detectors available? by nasios Started by nasios, 04-17-2026, 11:41 AM	0 responses 136 views 0 likes	Last Post by nasios 04-17-2026, 11:41 AM
New felejoo hex by haylaz0036 Started by haylaz0036, 04-02-2026, 04:20 PM	0 responses 190 views 0 likes	Last Post by haylaz0036 04-02-2026, 04:20 PM
Unknown old Underwater PI Detector Model by GeoMax Started by GeoMax, 03-26-2026, 03:03 PM	10 responses 413 views 1 like	Last Post by GeoMax 03-28-2026, 01:28 PM
A SAT control circuit question by GeoMax Started by GeoMax, 03-17-2026, 11:07 AM	2 responses 182 views 0 likes	Last Post by GeoMax 03-18-2026, 06:37 AM
DELTA PULSE2 DISCRIMINATION by kiouijki Started by kiouijki, 02-09-2026, 09:27 PM	4 responses 398 views 0 likes	Last Post by kiouijki 03-13-2026, 04:54 AM
Pulse Damping Resistor by Haydar Started by Haydar, 02-23-2026, 03:50 PM	12 responses 494 views 0 likes	Last Post by pechkata 02-26-2026, 10:52 AM
Eric Foster Goldscan 5 internal battery. by Tex Kinsey Started by Tex Kinsey, 03-30-2025, 12:46 PM	8 responses 581 views 0 likes	Last Post by Detectorist#1 02-22-2026, 06:08 PM
Sniffer XR-71 help by Jafar Started by Jafar, 10-05-2025, 05:09 PM	81 responses 1,815 views 1 like	Last Post by Carl-NC 02-18-2026, 03:22 PM
Need a power supply design for STM32 based PI detector by cristiano.sar Started by cristiano.sar, 03-18-2025, 07:05 PM	20 responses 757 views 0 likes	Last Post by GeoMax 02-17-2026, 07:27 AM
Multi Period pulse detector by algan Started by algan, 01-08-2026, 07:07 AM	2 responses 336 views 0 likes	Last Post by pechkata 02-12-2026, 09:12 AM
The simplest bipolar PI metal detector by boilcoil Started by boilcoil, 01-16-2026, 12:07 AM	12 responses 830 views 0 likes	Last Post by boilcoil 01-30-2026, 12:58 PM
Hybrid Bipolar Detector by Detectorist#1 Started by Detectorist#1, 01-01-2026, 11:54 AM	46 responses 2,006 views 2 likes	Last Post by algan 01-13-2026, 06:53 PM
Whites tdi pro shematic+pcb by maho55 Started by maho55, 11-25-2024, 01:59 PM	44 responses 2,401 views 0 likes	Last Post by Orbit 12-31-2025, 09:37 AM

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