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Topics	Statistics	Last Post
Sticky: New PI-Tech forum by Carl-NC Started by Carl-NC, 06-15-2021, 04:20 AM	22 responses 4,112 views 1 like	Last Post by Qiaozhi 08-10-2025, 09:31 AM
New Bipolar Boost TX and Front End by KingJL Started by KingJL, 04-30-2019, 07:21 PM	776 responses 16,240 views 0 likes	Last Post by KingJL 09-10-2020, 03:03 PM
Simplest PI detector possible? by brucester Started by brucester, 12-20-2012, 03:07 PM	422 responses 35,762 views 0 likes	Last Post by surfdetector 09-09-2020, 11:44 AM
Surf PI Pro - 10 AA NiMH Cells? by hobbes_lives Started by hobbes_lives, 03-14-2008, 10:29 PM	16 responses 1,818 views 0 likes	Last Post by lamoiz 09-06-2020, 07:13 PM
Clone PI-W small detection range by MDfanatic Started by MDfanatic, 08-22-2020, 08:01 PM	24 responses 582 views 0 likes	Last Post by 6666 08-27-2020, 11:34 PM
Manta Metal Detector by Asgard Started by Asgard, 05-10-2016, 05:26 PM	58 responses 4,249 views 0 likes	Last Post by Elliot 08-17-2020, 12:15 AM
separate RX/TX PI machine for deep targets? [like two-box] by RH-Lightning Started by RH-Lightning, 08-12-2020, 08:42 PM	0 responses 253 views 1 like	Last Post by RH-Lightning 08-12-2020, 08:42 PM
Does anybody remember this Surf PI simulation with GB mod ? by 6666 Started by 6666, 07-11-2020, 01:19 AM	0 responses 173 views 0 likes	Last Post by 6666 07-11-2020, 01:19 AM
What DIY PI-detector do you recommend to build? by Searchy Started by Searchy, 06-23-2020, 06:34 AM	9 responses 436 views 0 likes	Last Post by 6666 06-24-2020, 09:14 PM
Input Protection for Low-Distortion Op-Amp Circuits by waltr Started by waltr, 06-23-2020, 05:54 PM	2 responses 169 views 0 likes	Last Post by ivconic 06-24-2020, 06:56 AM
TineFPGA-GOLD Metal detector by SaltyDog Started by SaltyDog, 04-09-2020, 03:47 AM	167 responses 4,983 views 0 likes	Last Post by Searchy 06-23-2020, 06:24 AM
TD3X ( pi ) by DOOLEY Started by DOOLEY, 04-18-2015, 05:35 PM	240 responses 18,358 views 0 likes	Last Post by Bayu 06-13-2020, 05:24 PM
Detection distance for a US nickel and quarter by green Started by green, 09-18-2019, 07:58 PM	110 responses 2,908 views 0 likes	Last Post by green 06-12-2020, 03:40 AM
Digital pi, pre-amplifier circuit diagram by liudengyuan Started by liudengyuan, 06-09-2020, 06:45 PM	3 responses 294 views 0 likes	Last Post by liudengyuan 06-11-2020, 03:58 PM
Mirage PI Project, anyone interested? by SVEN1 Started by SVEN1, 10-11-2016, 12:05 AM	81 responses 6,609 views 0 likes	Last Post by Elliot 06-08-2020, 11:59 PM
PI 1234567890 PI by liudengyuan Started by liudengyuan, 06-06-2020, 07:18 PM	8 responses 292 views 0 likes	Last Post by liudengyuan 06-07-2020, 04:30 PM
NE555 pi audio by liudengyuan Started by liudengyuan, 06-05-2020, 02:48 AM	2 responses 244 views 0 likes	Last Post by liudengyuan 06-05-2020, 07:41 AM
The same pi in the world by liudengyuan Started by liudengyuan, 06-02-2020, 06:50 PM	0 responses 117 views 0 likes	Last Post by liudengyuan 06-02-2020, 06:50 PM
Eric Foster Pulsepower Goldquest Aquasearch V2 PI Metal Detector by DeborahJ Started by DeborahJ, 09-11-2019, 11:04 PM	33 responses 1,923 views 0 likes	Last Post by cjc 05-31-2020, 09:30 PM
Bipolar pulsing, target retentivity, coercivity, a pathway to PI discrimination? by dbanner Started by dbanner, 05-30-2020, 10:23 PM	7 responses 220 views 0 likes	Last Post by dbanner 05-31-2020, 04:52 AM
Pi power supply by liudengyuan Started by liudengyuan, 05-24-2020, 06:28 PM	32 responses 847 views 0 likes	Last Post by Elliot 05-30-2020, 12:03 AM
MINE_LAB -F1A4 -A/OK- IMOP.. by hoadlies Started by hoadlies, 07-05-2014, 10:50 AM	56 responses 3,141 views 0 likes	Last Post by Kev 05-26-2020, 10:38 PM
goldscan 4, no coil or probe response by rtola Started by rtola, 05-14-2020, 12:33 AM	0 responses 198 views 0 likes	Last Post by rtola 05-14-2020, 12:33 AM
barracuda by jafal Started by jafal, 05-11-2020, 09:36 AM	2 responses 189 views 0 likes	Last Post by waltr 05-11-2020, 01:16 PM
Photocoupler MOSFET/IGBT gate drive? by dbanner Started by dbanner, 05-08-2020, 03:07 PM	6 responses 236 views 0 likes	Last Post by dbanner 05-09-2020, 05:21 AM
PIU-A4-12L by Geo Started by Geo, 02-07-2008, 06:24 AM	34 responses 4,259 views 0 likes	Last Post by 6666 05-02-2020, 01:24 AM

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