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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 4,326 views 1 like	Last Post by Qiaozhi 08-10-2025, 09:31 AM
TineFPGA-GOLD Metal detector by SaltyDog Started by SaltyDog, 04-09-2020, 03:47 AM	167 responses 5,315 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 18,892 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 3,036 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 317 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 6,764 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 304 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 274 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 122 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 1,985 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 229 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 905 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 3,265 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 212 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 210 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 247 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 4,302 views 0 likes	Last Post by 6666 05-02-2020, 01:24 AM
What is the difference in these 2 PI kits by docaudio Started by docaudio, 09-27-2013, 01:30 AM	7 responses 503 views 0 likes	Last Post by Matt_Rowe 04-27-2020, 04:52 AM
Whites Surf Pi Pro Pulse Diver 950 Replacement Pots Sources? by bluetube1000 Started by bluetube1000, 04-21-2020, 11:44 PM	1 response 195 views 0 likes	Last Post by kt315 04-22-2020, 10:40 AM
Surf PI Burnout help! by Metalmatt Started by Metalmatt, 04-05-2020, 09:29 AM	30 responses 620 views 0 likes	Last Post by MartyJ1963 04-17-2020, 06:11 PM
New PI in development. Possibly by Koala Started by Koala, 04-08-2020, 09:26 PM	7 responses 403 views 0 likes	Last Post by bklein 04-16-2020, 01:45 AM
Simple Active Flyback Damping Circuit Experiment by Brian Deese Started by Brian Deese, 04-12-2020, 07:50 PM	17 responses 612 views 0 likes	Last Post by Xtrem 04-15-2020, 05:16 PM
Surf Pi parasite sound by nebulos Started by nebulos, 04-06-2020, 05:08 PM	1 response 198 views 0 likes	Last Post by Vadim18 04-14-2020, 08:58 PM
PI decay profile of gold ring with nail? by bklein Started by bklein, 01-30-2020, 10:46 PM	12 responses 664 views 0 likes	Last Post by bklein 04-12-2020, 05:33 PM
PI differential integrator power question by 6666 Started by 6666, 03-29-2020, 11:10 AM	5 responses 245 views 0 likes	Last Post by Carl-NC 03-30-2020, 01:23 AM
Looking for Goldscan 5c by Eric Foster schematic by Rom_1 Started by Rom_1, 10-29-2016, 06:17 PM	64 responses 4,688 views 0 likes	Last Post by 6666 03-29-2020, 10:03 AM

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