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#1
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I want to make a coil for a Millen grid dip meter that I bought *without*
coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry |
#2
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Go to the jamesmillenco.com web site and scroll halfway down page 1 for a
photo of the coils in the rack. A further Google search will reveal many other pages with photos. The 60 - 150 coil is two turns of #20 wire 3/8" dia., and spaced about 1/8" apart out at the end of the plastic tube (inside it). -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... I want to make a coil for a Millen grid dip meter that I bought *without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry |
#3
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Go to the jamesmillenco.com web site and scroll halfway down page 1 for a
photo of the coils in the rack. A further Google search will reveal many other pages with photos. The 60 - 150 coil is two turns of #20 wire 3/8" dia., and spaced about 1/8" apart out at the end of the plastic tube (inside it). -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... I want to make a coil for a Millen grid dip meter that I bought *without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry |
#4
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![]() Thanks, George I just made one. I wound a piece of 1/8 th diameter aluminum wire around a 3/8 th bolt. The leads on the coil to the meter are that same 1/8 th wire, about 2 inches long. I'm impressed that the grid dipper now produces 137.50 MHz when the dial reads 130.00. Hows that for good instructions from you?? I can tweek the frequency later, but now I see that this meter doesnt have alot os "power out". The grid dipper needle doesnt get above 0.1 so the poor sensitivity is going to make this meter difficult to interpret. I got a schematic with this (eBay) grid dipper so I expect I'll be able to do something to get the meter to read a little farther up scale. I appreciate your help. Thanks Jerry "Crazy George" wrote in message ... Go to the jamesmillenco.com web site and scroll halfway down page 1 for a photo of the coils in the rack. A further Google search will reveal many other pages with photos. The 60 - 150 coil is two turns of #20 wire 3/8" dia., and spaced about 1/8" apart out at the end of the plastic tube (inside it). -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... I want to make a coil for a Millen grid dip meter that I bought *without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry |
#5
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![]() Thanks, George I just made one. I wound a piece of 1/8 th diameter aluminum wire around a 3/8 th bolt. The leads on the coil to the meter are that same 1/8 th wire, about 2 inches long. I'm impressed that the grid dipper now produces 137.50 MHz when the dial reads 130.00. Hows that for good instructions from you?? I can tweek the frequency later, but now I see that this meter doesnt have alot os "power out". The grid dipper needle doesnt get above 0.1 so the poor sensitivity is going to make this meter difficult to interpret. I got a schematic with this (eBay) grid dipper so I expect I'll be able to do something to get the meter to read a little farther up scale. I appreciate your help. Thanks Jerry "Crazy George" wrote in message ... Go to the jamesmillenco.com web site and scroll halfway down page 1 for a photo of the coils in the rack. A further Google search will reveal many other pages with photos. The 60 - 150 coil is two turns of #20 wire 3/8" dia., and spaced about 1/8" apart out at the end of the plastic tube (inside it). -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... I want to make a coil for a Millen grid dip meter that I bought *without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry |
#6
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Jerry:
If it still has the original selenium and filter capacitor, that is a good place to start. Of course, the tube may be weak, although none of mine have ever needed tubes. -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... Thanks, George I just made one. I wound a piece of 1/8 th diameter aluminum wire around a 3/8 th bolt. The leads on the coil to the meter are that same 1/8 th wire, about 2 inches long. I'm impressed that the grid dipper now produces 137.50 MHz when the dial reads 130.00. Hows that for good instructions from you?? I can tweek the frequency later, but now I see that this meter doesnt have alot os "power out". The grid dipper needle doesnt get above 0.1 so the poor sensitivity is going to make this meter difficult to interpret. I got a schematic with this (eBay) grid dipper so I expect I'll be able to do something to get the meter to read a little farther up scale. I appreciate your help. Thanks Jerry "Crazy George" wrote in message ... Go to the jamesmillenco.com web site and scroll halfway down page 1 for a photo of the coils in the rack. A further Google search will reveal many other pages with photos. The 60 - 150 coil is two turns of #20 wire 3/8" dia., and spaced about 1/8" apart out at the end of the plastic tube (inside it). -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... I want to make a coil for a Millen grid dip meter that I bought *without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry |
#7
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Jerry:
If it still has the original selenium and filter capacitor, that is a good place to start. Of course, the tube may be weak, although none of mine have ever needed tubes. -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... Thanks, George I just made one. I wound a piece of 1/8 th diameter aluminum wire around a 3/8 th bolt. The leads on the coil to the meter are that same 1/8 th wire, about 2 inches long. I'm impressed that the grid dipper now produces 137.50 MHz when the dial reads 130.00. Hows that for good instructions from you?? I can tweek the frequency later, but now I see that this meter doesnt have alot os "power out". The grid dipper needle doesnt get above 0.1 so the poor sensitivity is going to make this meter difficult to interpret. I got a schematic with this (eBay) grid dipper so I expect I'll be able to do something to get the meter to read a little farther up scale. I appreciate your help. Thanks Jerry "Crazy George" wrote in message ... Go to the jamesmillenco.com web site and scroll halfway down page 1 for a photo of the coils in the rack. A further Google search will reveal many other pages with photos. The 60 - 150 coil is two turns of #20 wire 3/8" dia., and spaced about 1/8" apart out at the end of the plastic tube (inside it). -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... I want to make a coil for a Millen grid dip meter that I bought *without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry |
#8
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" I want to make a coil for a Millen grid dip meter that I bought
*without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry The following website may be of use to you. In any event, it's a very interesting site for anyone interested in GDO's. http://www.qsl.net/n4xy/gdos.html Lee Carkenord KA0FPJ |
#9
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" I want to make a coil for a Millen grid dip meter that I bought
*without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry The following website may be of use to you. In any event, it's a very interesting site for anyone interested in GDO's. http://www.qsl.net/n4xy/gdos.html Lee Carkenord KA0FPJ |
#10
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And, another thought: Often times on ebay, and at swap meets, you will see
ones by Measurments Corp-- Model 59. (think some also calles "Boontown" meters , were made in Boontown, N.J.) These were made even with modern day houseings (saw one at the last local meet), and relatively CHEAP! These come in 2 varieties- a LOW freq head (freq range unknown), and a HF-VHF version 2.2 MHz to 400 MHz in 7 ranges, and have a 4 inch meter (great for these fadeing eyes) But- make sure that these have all their coils, and tuneing head! Tuneing is quite smooth and freq is acurate - modification article for them is in vintage Ham Radio issue. Agree with george- selenium is probably shot, as well as filter cap., and tube probably getting quite old (glow violet?- its "gassy", and migh salvage it by keeping power on it for couple weeks, but cheap to replace)! Good luck, either way! Jim NN7K "Crazy George" wrote in message ... Jerry: If it still has the original selenium and filter capacitor, that is a good place to start. Of course, the tube may be weak, although none of mine have ever needed tubes. -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... Thanks, George I just made one. I wound a piece of 1/8 th diameter aluminum wire around a 3/8 th bolt. The leads on the coil to the meter are that same 1/8 th wire, about 2 inches long. I'm impressed that the grid dipper now produces 137.50 MHz when the dial reads 130.00. Hows that for good instructions from you?? I can tweek the frequency later, but now I see that this meter doesnt have alot os "power out". The grid dipper needle doesnt get above 0.1 so the poor sensitivity is going to make this meter difficult to interpret. I got a schematic with this (eBay) grid dipper so I expect I'll be able to do something to get the meter to read a little farther up scale. I appreciate your help. Thanks Jerry "Crazy George" wrote in message ... Go to the jamesmillenco.com web site and scroll halfway down page 1 for a photo of the coils in the rack. A further Google search will reveal many other pages with photos. The 60 - 150 coil is two turns of #20 wire 3/8" dia., and spaced about 1/8" apart out at the end of the plastic tube (inside it). -- Crazy George Remove N O and S P A M imbedded in return address "Jerry Martes" wrote in message ... I want to make a coil for a Millen grid dip meter that I bought *without* coils. It would be alot easier if I had a picture of the coil Milen uses for the 60 to 150 MHz range. Is there anyone who'd be willing to send me a picture of that coil? Thanks Jerry |
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