Do you know how many turns of wire were in the "feedback" portion of the xmit coil. Were those turns reversed relative to the main coil. Also wondered about the value of C2. is it 10nf? Many thanks....really good video and explanation. Also, if I may...what's the downside of leaving out the feedback turns? I'm planning on turning a 6000 into a two-box type detector and may have to make my own coils. Many thanks!
Wonderful demo ,thank you a lot...i have the mxt and it keeps buzzing i don't know what could go wrong with it ,any advice please? Also you mention not to mixmach coils yet there is metal detectors that work with many coils ! I will appreciate your help
Very informative and the best detector repair information on the net. Have a like new eagle spectrum with a failing l.c.d screen and cannot find a replacement for it new or used. Great machine that kills me to have to discard but it looks like there are no other alternatives. Would have thought there would be one still available somewhere. Nice vids!
I've got a 1500 Blue Max coil for the 5900-6000 series. My readings are RCV=112.7 ohm, and 34.6mh. Xmit is 1.7 ohms, and 1.68mh. I'm getting a resistance reading of 12.6 megohms between pins 2 and 4. Do I have a coil issue? I have no shorts from pin 3 to any others. Thanks
Hey Terry, what would you recommend for a cheap detector to some one that wants to try out this hobby? When I was a kid I thought it was pretty cool to play with a metal detector. Get to find buried tressure.
At last! I found someone who could help determining receive/transmit wire, so we can build our own coils👍 My question is: how can we get the schematic of the circuit, is it inside the control box??
If you want something like the 5900 there is a board you can buy which is an IDX-pro Which i love and actually use as my main detector, link to the board here diydetector.co.uk/store/index.php?id_product=23&id_product_attribute=0&rewrite=idx-pro&controller=product and if go on Geotech forums for advice and BOM for the board, they're a lot of detector circuits you can find in Geotech www.geotech1.com/forums/forum.php
BTW building VLF coils are not for the faint of heart, you need to get the two windings slightly out of phase with one and other and its not something that is easily done, your better off buying a board and putting it together and buying a pre-made coil, Also on amazon look for a book called Inside the metal detector, it is very well written and will give you a better understanding of how different technology type of detectors works
I have a Whites DFX I just bought. Looks never used. The VDI numbers are low. Says 74 Penny Dime when a quarter is passed across coil. I checked the caps. They checked ok. I tested the coil transmit and receive ok. But NO SHIELD PIN 3 to ground. I removed the 5 pin connector and pin 3 does not have anything going anywhere. All other coils I have pin 3 is grounded. If I bump the coil it reacts erratic also. Do you know if the DFX is supposed to have the shield? There is a white wire from the control box pin 3 to the circuit board so I would assume it should connect to the shield.
Greetings . I have a problem that maybe I can some answers on. Whites 6000D series 2, Near brand new looking, acquired from Ebay yesterday ; GEB DISC, either selected with the knob, or with the push button (mode switching), the detector DOES NOT SEND AN AUDIO RESPONSE WHILE IN GEB DISC MODE (speaker/audio jack) DOES NOT RESPOND. IN THIS MODE. The METER RESPONDS BUT THE SOUND DOESN'T... all other modes, the sound works fine .. Any Ideas?
Hello, I just purchased a 1968 vintage White's Goldmaster S66T. I think it has a bad coil. Where can I find the schematics for these older detectors? I need to know which pins to test on my coil so I can tell if my sensitivity issue is in the coil or the detector. Please help me if possible. Thanks.
I have the Coinmaster 6000 series 2 with the single battery. I can't get the sound to work and the meter acts weak (won't go over half) and bottoms out then jumps back to around half way. When I wave different metals the meter jumps but never over half. I've changed an electrolytic capacitor that was swollen and changed out a integrated circuit that had black burnt pins and still no luck. After watching two of your videos I'm starting to think the coil is bad. But, would the bad coil cause the detectors sound not to work, not even chirp?
Sooooo. Where can a guy purchase a replacement plug end? Better yet, where can I get it done. I have a White's 300 LTD coil that is running overload on my VX3. I tested the plug as you showed and am getting 4.5 ohms between #5 and #4 and nothing between the #5 and housing. Obviously they didn't intend for people to be able to replace the plug themselves.
Hey Terry I have a whites MXT 950 series E detector it comes in a hard shell case with two extra coils one is a Eclipse 5.3 and the other is a Eclipse DD1400.Do to health reasons I cannot use any more.If you you have the need for something like this I would be willing to do a trade for for a amplifier.The detector is about 10 years old and used very little and like new condition.
Mr Terry Sir, I have a question about the old octal tubes. Isn't there a certain way that type has to be removed ? I think I seen something someone else said saying they have to be moved a certain way before they'll release from the socket. I would really appreciate you clearing up what the other person was referring to thank you Sir for any assistance. This video is great info...👍👍👍👍👍👍👍👍
The Octals will pull straight out, no latching. The Loctals however had a small retaining function on the center locator pin and took a little more force to un seat them. They were normally used in tube car radios in the late 40's. A few home table top radios had them, but that was quickly phased out.
Any ideas on White Coinmaster GT. Unit was very noisy. Installed new coil problem slightly better. But still seems to get stray signals ?? Hard to believe coil could be bad again with less than 10 hours of use on it. Has White had any problems with intermittent wiring to connectors ?
Does yours have a ground balancing potentiometer? if so you might want to look in to cleaning it up or replacing it, if you don't get the ground balancing right it will not only lose sensitivity but also be noisy,
Hola ,saludos desde españa, tengo el white,s 6000 di pro sl, y el aparato sin tener conectado el disco,la aguja no para de oscilar constantemente,que puede ser? Le he repasado algunas soldaduras frias que he encontrado pero sigue igual, gracias y un saludo
I have 3 whites coils of them 2 of the 6B and one F coil all running on 6.59khz none of them have the same resistance. lol I'm a little confused now lol BTW one is an 8 inch and two are 10 inches, I have a 15 inch on the way lol I wonder which resistance that one will have. they all work
Couple things... First, how hard would it be to wind your own coil on one of these? Second, be careful posting too fast to TH-cam! I've figured out the algorithm punishes you if you upload multiple vids within a set period. Just something I've noticed in the past. I'm sure this vid will be super helpful to some detectorists.
Thanks for the tip man, Yes, I normally do not upload multi vids a day. Just had these ready, was sipping wine, editing, it got away from me! I appreciate your support. Maybe some day we could team up & shoot an all time great!
8:37 WTF ? Of course the coil is shielded !!! What are you babbling, you not know anything about electronics ?? Buy ur'self a book or something, instead of spreading misinformation....
Thanks, very helpful information. You are a great teacher, now I can run a check on my coils, it's appreciated.
Thanks - I had a break on my receive coil. Thanks for helping!
what if the shield shows open?on a whites treasure pro.
Hi Terry, Thank you for answering a question I didn't ask .... Thanks for your videos : )
Did you ever make a comparison of the mxt vs the 5900 detecting objects in the ground? I couldn't find the video
We have an old Rad Shak detector around here, will have to check it out. Thanks Terry.
Do you know how many turns of wire were in the "feedback" portion of the xmit coil. Were those turns reversed relative to the main coil. Also wondered about the value of C2. is it 10nf? Many thanks....really good video and explanation. Also, if I may...what's the downside of leaving out the feedback turns? I'm planning on turning a 6000 into a two-box type detector and may have to make my own coils. Many thanks!
Wonderful demo ,thank you a lot...i have the mxt and it keeps buzzing i don't know what could go wrong with it ,any advice please?
Also you mention not to mixmach coils yet there is metal detectors that work with many coils ! I will appreciate your help
Very informative and the best detector repair information on the net. Have a like new eagle spectrum with a failing l.c.d screen and cannot find a replacement for it new or used. Great machine that kills me to have to discard but it looks like there are no other alternatives. Would have thought there would be one still available somewhere. Nice vids!
Por favor
Me responda uma pergunta.
O White 4900.e também pra prospecção?
Se for e sensível a pepita. .pequena. ?
I've got a 1500 Blue Max coil for the 5900-6000 series. My readings are RCV=112.7 ohm, and 34.6mh. Xmit is 1.7 ohms, and 1.68mh. I'm getting a resistance reading of 12.6 megohms between pins 2 and 4. Do I have a coil issue? I have no shorts from pin 3 to any others. Thanks
Hey Terry, what would you recommend for a cheap detector to some one that wants to try out this hobby? When I was a kid I thought it was pretty cool to play with a metal detector. Get to find buried tressure.
At last! I found someone who could help determining receive/transmit wire, so we can build our own coils👍
My question is: how can we get the schematic of the circuit, is it inside the control box??
If you want something like the 5900 there is a board you can buy which is an IDX-pro Which i love and actually use as my main detector, link to the board here diydetector.co.uk/store/index.php?id_product=23&id_product_attribute=0&rewrite=idx-pro&controller=product and if go on Geotech forums for advice and BOM for the board, they're a lot of detector circuits you can find in Geotech www.geotech1.com/forums/forum.php
BTW building VLF coils are not for the faint of heart, you need to get the two windings slightly out of phase with one and other and its not something that is easily done, your better off buying a board and putting it together and buying a pre-made coil, Also on amazon look for a book called Inside the metal detector, it is very well written and will give you a better understanding of how different technology type of detectors works
I have an eagle II SL that's dead, would you know where I can get a diagram for it? Nice video btw, it was exactly what I was looking for.
I have a Whites DFX I just bought. Looks never used. The VDI numbers are low. Says 74 Penny Dime when a quarter is passed across coil. I checked the caps. They checked ok.
I tested the coil transmit and receive ok. But NO SHIELD PIN 3 to ground. I removed the 5 pin connector and pin 3 does not have anything going anywhere. All other coils I have pin 3 is grounded.
If I bump the coil it reacts erratic also.
Do you know if the DFX is supposed to have the shield?
There is a white wire from the control box pin 3 to the circuit board so I would assume it should connect to the shield.
Greetings . I have a problem that maybe I can some answers on. Whites 6000D series 2, Near brand new looking, acquired from Ebay yesterday ; GEB DISC, either selected with the knob, or with the push button (mode switching), the detector DOES NOT SEND AN AUDIO RESPONSE WHILE IN GEB DISC MODE (speaker/audio jack) DOES NOT RESPOND. IN THIS MODE. The METER RESPONDS BUT THE SOUND DOESN'T... all other modes, the sound works fine .. Any Ideas?
Hello, I just purchased a 1968 vintage White's Goldmaster S66T. I think it has a bad coil. Where can I find the schematics for these older detectors? I need to know which pins to test on my coil so I can tell if my sensitivity issue is in the coil or the detector. Please help me if possible. Thanks.
I have the Coinmaster 6000 series 2 with the single battery. I can't get the sound to work and the meter acts weak (won't go over half) and bottoms out then jumps back to around half way. When I wave different metals the meter jumps but never over half. I've changed an electrolytic capacitor that was swollen and changed out a integrated circuit that had black burnt pins and still no luck. After watching two of your videos I'm starting to think the coil is bad. But, would the bad coil cause the detectors sound not to work, not even chirp?
Yes, I agree, and the series 2 is really not worth the effort to repair. The price of used machine has fell badly
first. wow 2 in 1 day EXELLENT!!!!! thx terry
Hello Teri , When Ii checked pin#3 it was not connect to the shield . Can I fix it ?
Sooooo. Where can a guy purchase a replacement plug end? Better yet, where can I get it done. I have a White's 300 LTD coil that is running overload on my VX3. I tested the plug as you showed and am getting 4.5 ohms between #5 and #4 and nothing between the #5 and housing. Obviously they didn't intend for people to be able to replace the plug themselves.
How do I fix the pins inside the mxt ? Mine are broken it works the cable is fine it’s the pins inside the mxt E-series
Hey Terry I have a whites MXT 950 series E detector it comes in a hard shell case with two extra coils one is a Eclipse 5.3 and the other is a Eclipse DD1400.Do to health reasons I cannot use any more.If you you have the need for something like this I would be willing to do a trade for for a amplifier.The detector is about 10 years old and used very little and like new condition.
Sir how about md-88 metal detector, is that desame in a 5900?
great tips thanks At some stage I will have to do this
Mr Terry Sir, I have a question about the old octal tubes. Isn't there a certain way that type has to be removed ? I think I seen something someone else said saying they have to be moved a certain way before they'll release from the socket. I would really appreciate you clearing up what the other person was referring to thank you Sir for any assistance. This video is great info...👍👍👍👍👍👍👍👍
The Octals will pull straight out, no latching. The Loctals however had a small retaining function on the center locator pin and took a little more force to un seat them. They were normally used in tube car radios in the late 40's. A few home table top radios had them, but that was quickly phased out.
I have a whites coinmaster 4/DB mineral and metal detector how do u operate it
Tenho um xterra 705 parou de fazer a discriminação. Será que compensa consertar ?
Ou é melhor comprar uma caixa de controle. ?
Any ideas on White Coinmaster GT. Unit was very noisy. Installed new coil problem slightly better. But still seems to get stray signals ?? Hard to believe coil could be bad again with less than 10 hours of use on it. Has White had any problems with intermittent wiring to connectors ?
Does yours have a ground balancing potentiometer? if so you might want to look in to cleaning it up or replacing it, if you don't get the ground balancing right it will not only lose sensitivity but also be noisy,
Hola ,saludos desde españa, tengo el white,s 6000 di pro sl, y el aparato sin tener conectado el disco,la aguja no para de oscilar constantemente,que puede ser? Le he repasado algunas soldaduras frias que he encontrado pero sigue igual, gracias y un saludo
Thanks! That was a big help!
I did a metal detector but the problem that it's give sound when the absent of metal , but the sound stop when a metal near the coil
I have 3 whites coils of them 2 of the 6B and one F coil all running on 6.59khz none of them have the same resistance. lol I'm a little confused now lol BTW one is an 8 inch and two are 10 inches, I have a 15 inch on the way lol I wonder which resistance that one will have. they all work
Couple things... First, how hard would it be to wind your own coil on one of these? Second, be careful posting too fast to TH-cam! I've figured out the algorithm punishes you if you upload multiple vids within a set period. Just something I've noticed in the past. I'm sure this vid will be super helpful to some detectorists.
Thanks for the tip man, Yes, I normally do not upload multi vids a day. Just had these ready, was sipping wine, editing, it got away from me! I appreciate your support. Maybe some day we could team up & shoot an all time great!
Terry and Brad, oh yes, what a combo. Dumpster diving looking for half-filled wine bottles. Just kidding. Two of my favorites.
Goood info thanks for that
This really hurt my brain...lol great.job
Like!
8:37 WTF ? Of course the coil is shielded !!! What are you babbling, you not know anything about electronics ?? Buy ur'self a book or something, instead of spreading misinformation....