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#1
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Does anybody know the circle size for ribbon cable (.05" spacing)
tuning the MW band with 365pf var cap? I have 10, 14, 16, 20, and 25 conductor ribbon cable (28 ga. wire) so diameters for any of those. There's always cut and try but maybe somebody has done it. -- Ron Hardin On the internet, nobody knows you're a jerk. |
#2
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I have not used ribbon cable but have plans on the AMANDX site below for
a box loop......maybe it will work -- 73 and Best of DX Shawn Axelrod Visit the AMANDX DX site with info for the new or experienced listener: http://www.angelfire.com/mb/amandx/index.html REMEMBER ON A CLEAR DAY YOU CAN HEAR FOREVER Ron Hardin wrote: Does anybody know the circle size for ribbon cable (.05" spacing) tuning the MW band with 365pf var cap? I have 10, 14, 16, 20, and 25 conductor ribbon cable (28 ga. wire) so diameters for any of those. There's always cut and try but maybe somebody has done it. -- Ron Hardin On the internet, nobody knows you're a jerk. |
#3
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The Axelrods wrote in
: I have not used ribbon cable but have plans on the AMANDX site below for a box loop......maybe it will work -- 73 and Best of DX Shawn Axelrod Mark Connelly had an article online for a ribbon cable loop but it's gone. Remember, Shawn? ![]() Ex-EDXR editor. |
#4
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Hi Ron,
I made one out of 10 conductor ribbon several years ago and the diameter was around 15 inches. The design was from Short Wave Mag. I recall. Regards Tom --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.500 / Virus Database: 298 - Release Date: 10/07/03 |
#5
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RH,
1. The Portable 3 Foot Ribbon Cable Loop This article describes how to construct a loop from ribbon cable. GoTo= http://www.mindspring.com/~loop_antenna/ribbonloop.htm "Introduction - One idea that has been suggested for constructing a loop is to use ribbon cable, with a winding spacing of 0.050 inch, to consturct the loop. I saw a loop antenna article at one time that recommended the use of flat ribbon cable, and showed how to make a loop by using the ribbon cable, offset by one pin, on two "D" style connectors, and plugging together to form the loop. I have never seen that article again, so I suspect it has been removed from the web. So I thought I would resurrect the idea. 2. The Umbrella Loop Antenna. GoTo= http://www.mindspring.com/~loop_ante...brellaloop.htm "The Umbrella Loop Concept - I saw the answer in an everyday object that just about everybody owns - an umbrella. Like my "ideal" loop, it needs to have a large deployed shape, yet needs to be lightweight enough to carry, and needs to fold to a compact form that is easy to store. It needs to deploy quickly. It has many characteristics in common with what I want for loop! But - could I make a loop antenna based on the umbrella design? I cannot use umbrella hardware directly, because it is metal. But - I found a way to use wood instead for the supports, and a minimum of metal used near the center of the mechanism." NOTE: The WebPages = http://www.mindspring.com/~loop_antenna/ - - - Is "Bruce Carter" 3. Superloop receiving antenna for 136kHz GoTo= http://web.ukonline.co.uk/g3ldo/loop.htm "About a year ago I made a receiving loop for 136kHz using computer ribbon cable housed in plastic waste pipe." 4. Receiving 'Loop Antenna' for the "HeyPhone" (Cave Radio) GoTo= http://www.sat.dundee.ac.uk/~arb/hey...phone-loop.pdf Check-Out the Loop Antennas eGroup on YAHOO! - - - http://groups.yahoo.com/group/loopantennas/ ~ RHF .. .. = = = Ron Hardin = = = wrote in message ... Does anybody know the circle size for ribbon cable (.05" spacing) tuning the MW band with 365pf var cap? I have 10, 14, 16, 20, and 25 conductor ribbon cable (28 ga. wire) so diameters for any of those. There's always cut and try but maybe somebody has done it. |
#6
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Like said the capacitance gets to high, you have to Mobius wind or forget it
!! See http://www.electronics-tutorials.com...us-winding.htm -Joe "Ron Hardin" wrote in message ... Does anybody know the circle size for ribbon cable (.05" spacing) tuning the MW band with 365pf var cap? I have 10, 14, 16, 20, and 25 conductor ribbon cable (28 ga. wire) so diameters for any of those. There's always cut and try but maybe somebody has done it. -- Ron Hardin On the internet, nobody knows you're a jerk. |
#7
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"Joe" wrote in
: Like said the capacitance gets to high, you have to Mobius wind or forget it No way to mobius wind a ribbon loop, Joe. |
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