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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 4,246 views 1 like	Last Post by Qiaozhi 08-10-2025, 09:31 AM
PI 1234567890 PI by liudengyuan Started by liudengyuan, 06-06-2020, 07:18 PM	8 responses 303 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 259 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 121 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 1,980 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 228 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 898 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 3,241 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 209 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 206 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 243 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 501 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 190 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 615 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 400 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 603 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 194 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 660 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 4,666 views 0 likes	Last Post by 6666 03-29-2020, 10:03 AM
DD pi by liudengyuan Started by liudengyuan, 02-22-2020, 04:13 PM	2 responses 349 views 0 likes	Last Post by waltr 02-22-2020, 07:31 PM
pi preamp by liudengyuan Started by liudengyuan, 02-08-2020, 12:57 PM	58 responses 2,006 views 0 likes	Last Post by liudengyuan 02-21-2020, 09:43 PM
sample delay by sayan1345 Started by sayan1345, 02-06-2020, 02:29 PM	9 responses 303 views 0 likes	Last Post by sayan1345 02-08-2020, 01:18 PM
pi pi pi vlf vlf by liudengyuan Started by liudengyuan, 02-06-2020, 09:35 AM	3 responses 360 views 0 likes	Last Post by kt315 02-07-2020, 09:05 AM
Inverting Buck Boost PSU for PI TX by Cazavor Started by Cazavor, 01-22-2020, 03:44 PM	9 responses 451 views 0 likes	Last Post by Altra 02-01-2020, 03:26 PM

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