Choose fontsize:
Welcome, Guest. Please login or register.
News
jamiepearce
January 17, 2024, 07:59:51 PM
 Evening.been out the picture for a few years.is there any weekenders coming up this year?
rookypair
January 04, 2024, 09:57:08 AM
 I think everyone has dispersed in all directions. Good to see some of the original peeps posting to 
rjm
January 03, 2024, 11:26:38 PM
 This site is pretty dead now! 
TOMTOM
January 03, 2024, 05:38:50 PM
 HI IM HERE ANY RALLYS
dances with badgers
December 28, 2023, 09:40:42 AM
 the dreaded social media lol
DEADLOCK
December 27, 2023, 08:26:38 AM
 Still going social media plays a big part 
dances with badgers
December 26, 2023, 10:41:07 PM
 This site used to be amazing, where has everybody gone? 

View All

 

Currently there is 1 User in the Chatroom!





Click here if you
need van signs


Or here if you
need magnetic signs


Or here if you
need a
Corporate Video Production Company in Milton Keynes

See our
privacy policy here


Pages: 1 ... 4 5 [6] 7
  Print  
Author Topic: Pulse Induction detector build  (Read 33328 times)
nobby
Moderator
Superhero Member
*****
Offline Offline

Posts: 2168


Wanna be boy band....


« Reply #75 on: November 26, 2015, 06:34:13 PM »

Looks great fairplay Wink
Logged

“I refuse to join any club that would have me as a member.”
Cymro
Full Member
***
Offline Offline

Posts: 229


« Reply #76 on: November 26, 2015, 07:33:26 PM »

Looks great fairplay Wink

Thanks!
Logged
dingdong
Superhero Member
******
Offline Offline

Posts: 2965


MAD COWS EAT METAL DETECTORISTS !!!🐂🐂🐂🐂🐂🐂


« Reply #77 on: November 26, 2015, 09:51:39 PM »

Nice work !!when is it going into production !!!LOL👍
Logged
Cymro
Full Member
***
Offline Offline

Posts: 229


« Reply #78 on: November 26, 2015, 10:18:51 PM »

Nice work !!when is it going into production !!!LOL👍

Funny you should mention that . . .  Wink
Logged
Dryland
Superhero Member
******
Offline Offline

Posts: 3824


Keeper of the Lights


« Reply #79 on: November 28, 2015, 01:45:47 AM »

Are we there yet ? Grin
Logged

If money is the root of all evil,why can't we spend parsnips ?
Cymro
Full Member
***
Offline Offline

Posts: 229


« Reply #80 on: November 28, 2015, 08:35:05 AM »

Are we there yet ? Grin

You've been watching 'Wide Awake Club' too much - Timmy Mallet yelling, 'Are we nearly there yet . . .?'

Patience, child . . .  Wink
Logged
Dryland
Superhero Member
******
Offline Offline

Posts: 3824


Keeper of the Lights


« Reply #81 on: November 29, 2015, 02:58:59 AM »

 Grin Grin
Logged

If money is the root of all evil,why can't we spend parsnips ?
Resurgam
Superhero Member
******
Offline Offline

Posts: 1270



« Reply #82 on: January 23, 2016, 10:02:58 PM »

Ok, Clive; how is it progressing?
Logged

Minelab Safari + Quest Q40 + Garrett ProPointer + Patience, Persistence, Knowledge, and loads of determination. Wink
Cymro
Full Member
***
Offline Offline

Posts: 229


« Reply #83 on: January 24, 2016, 11:06:41 AM »

I'd nearly forgotten about that . . .

I got everything hooked up, checked, re-checked all the wiring and connections then switched on. Blew the on-board 2A fuse. Replaced the fuse and it did the same again. I only had those two 20mm 2A fuses so sent for more, meantime gutted a couple of larger 2A fuses and soldered the fusible wire across the dead 20mm one.

Still the same so I put the detector aside 'just for now' (allegedly until the new fuses arrived . . . ) Completely lost heart in it even after the new fuses came so haven't touched it since. Got a feeling it's something I've done wrong but need to be in the mood to even feel like trying to figure out what . . .

Bit difficult to fault-find it without a cct diagram - all I have is a connections diagram so dead in the water right now.

So thanks for asking but no good news yet I'm afraid! I'll just have to wait until my Muse decides to make a re-appearance . . .
Logged
dingdong
Superhero Member
******
Offline Offline

Posts: 2965


MAD COWS EAT METAL DETECTORISTS !!!🐂🐂🐂🐂🐂🐂


« Reply #84 on: January 24, 2016, 07:53:41 PM »

"Nil desperandum" if you can build something that complex, I'm positive that you will sort it out,after all,step back from it,pat yourself on the back,and all of a sudden the solution will come to you, you have done so well mate !!
Looking forward to hearing that the project is completed and exceeds even your own expectations .👏👏👏👏👍
Logged
Resurgam
Superhero Member
******
Offline Offline

Posts: 1270



« Reply #85 on: January 25, 2016, 01:18:59 AM »

I was well impressed by your initial progress and recon you will soon resolve the present little problem. Perhaps the supplier can point you in the right direction? 
Logged

Minelab Safari + Quest Q40 + Garrett ProPointer + Patience, Persistence, Knowledge, and loads of determination. Wink
Resurgam
Superhero Member
******
Offline Offline

Posts: 1270



« Reply #86 on: January 25, 2016, 09:56:10 AM »

PS...........

                    I wonder if it could be an earthing problem and the power is going directly to earth, rather than into the circuit?
Logged

Minelab Safari + Quest Q40 + Garrett ProPointer + Patience, Persistence, Knowledge, and loads of determination. Wink
Cymro
Full Member
***
Offline Offline

Posts: 229


« Reply #87 on: January 25, 2016, 07:45:20 PM »

Thanks for the encouragement, guys.

I had wondered about a dead short myself - will have to have a good look at it when I get bored the opportunity.

I was doing a few tests to try and narrow the problem down until I ran out of fuses - first I disconnected the coil (still blew the fuse) and then I disconnected the pins from  socket 1 which supply the speaker and reset button. Still blowing the fuse at that point, which was when I ran out of fuses. At least I can discount those . . .

Got myself involved in something technical at the moment but when the bench is clear I'll have another look.
Logged
Detectski
Full Member
***
Offline Offline

Posts: 108


« Reply #88 on: January 27, 2016, 09:38:13 PM »

Just a thought, if you have access to a current limited power supply (common bench PSU) you could lash this in instead of the fuse and battery. Just set the power supply's current limit to 2A. This would allow you to continue fault finding without blowing more fuses or damaging anything, when you've got the fault sorted reconnect the battery/fuse.

 
Logged
Cymro
Full Member
***
Offline Offline

Posts: 229


« Reply #89 on: January 28, 2016, 10:16:29 AM »

I do have a bench power supply but it's not current-limited, only voltage-regulated.

I could build a current-limited one but I got out of that when I was into Amateur Radio - I was building test gear to test the test gear, IYSWIM. It's like a never-ending cycle.

But yes, that's a sensible approach.
Logged

Pages: 1 ... 4 5 [6] 7
  Print  
 
Jump to:  


Home
SimplePortal 2.3.3 © 2008-2010, SimplePortal