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panbiker
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 Posted -
01/09/2008
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13:48
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Hearing Stanley's comment in another thread about someone he knew at Lancaster Uni that made a radio with a bucket and a coat hanger has got me going.
I'm going to need one or two bits and pieces to make this work.
Some wire, a safety pin, a pencil, some kind of earpiece and a razor blade. That should just about do it.
An appeal to all the locals, probably the blokes. Ideally I need one of those old fashioned single sided razor blades (preferably blued), although this could be sorted if its not. A later generation double sided Blue Gillette blade would probably do at a pinch but the single sided ones have recesses in the right place for fixing. Can anyone help?
We shall make music or speech (or both) out of the ether once we get the kit together.
Ian
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panbiker
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Posted - 15/09/2008 : 17:43
quote:
Mercury wrote:
Well at least we're still 'on topic', as amateur radio is all about whistling
Hmmm, definitely not just whistles, one or two other knobs and bells as well Mercury.
Ian  |
Mercury
Regular Member
233 Posts
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Posted - 15/09/2008 : 19:10
I can feel a Steeplejack style 'hehehe' coming on with that reply!
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panbiker
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Posted - 15/09/2008 : 19:44
Topic back on track...
Here are the 7 O'clock blades that dulciesdad tipped up for the project.
This is the slightly rusty one which I will try to make half the detector from. I will have a go at blueing the others. Anyone picking the topic up for the first time, I am still looking for some single sided blued blades which would be contemporary with what was in general use during WWII.
I will try and coax rectification from the oxidisation on this one. I will post more pictures as the project develops.
Ian |
belle
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Posted - 15/09/2008 : 20:25
Not meaning to digress form the blades too quickly, I shall be interested to see if you can get them blue, did Julie perhaps mean wheezy beep, when she said breezy wheep?
Life is what you make it |
panbiker
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Posted - 15/09/2008 : 21:42
Belle, I'm going to try Stanleys tips that he gave me for blueing. Once I get the rest built it will be easy to try different substances for the detector in the circuit. Might be a bit like getting blood out of a stone but we can but try.
Ian |
Stanley
Local Historian & Old Fart
36804 Posts
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Posted - 16/09/2008 : 06:31
Ian, you'll be surprised how easy the blueing is. Works like magic and a lovely colour. Go to it, only crucial thing for an even finish is getting the blade clean and oil-free before heating. I'd wash it with solvent, rub up on wetand dry and then finish with boiling water wash and a wipe with a kitchen paper towel. That'll do it. I promise you'll be blueing everything when you've done one.
Stanley Challenger Graham
Barlick View
stanley at barnoldswick.freeserve.co.uk |
panbiker
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Posted - 18/09/2008 : 20:34
Just picked some goodies up off Stanley. A gizmo from a hospital which is some sort of variable power source, not sure till I see under the lid. I will investigate and see if the gubbins has potential for the resonant coil of the receiver. As a fall back he also tipped up some loose enamelled copper wire which may also come in useful.
I will post some pics when I have something to show.
Ian |
Stanley
Local Historian & Old Fart
36804 Posts
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Posted - 19/09/2008 : 10:35
Still looking for the transformer........
Stanley Challenger Graham
Barlick View
stanley at barnoldswick.freeserve.co.uk |
panbiker
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Posted - 19/09/2008 : 20:58
As you said Stanley, it's not lost, just somewhere waiting to be found.
Should get a start on the Foxhole Radio next week, we have family up this weekend for Carla's bithday.
Ian |
panbiker
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Posted - 23/09/2008 : 19:37
Right, I have made a start on the Foxhole Radio.
I have wound the resonant coil using the enamelled copper wire that Stanley donated to the project. It's somewhere near the correct gague and the coil has approximately the right number of turns, 170 on a 1.5" to 2.0" former. With a bit of luck and a good long length of wire for an aerial, it should resonate somewhere in the 500kHz-1630 kHz range. I have used the cardboard centre from a toilet roll for the coil former although any similar non conductive former would be OK for the design.
The exact number of turns on the coil is not critical as long as it is somewhere near. I'm going to build the design with a sliding earth arrangement which will add a certain amount of tuning to the circuit by varying the length and therefore the resonant frequency of the coil.
Ian |
Stanley
Local Historian & Old Fart
36804 Posts
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Posted - 24/09/2008 : 07:52
Looks good.........
Stanley Challenger Graham
Barlick View
stanley at barnoldswick.freeserve.co.uk |
Tizer
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Posted - 21/12/2008 : 11:18
Any further progress....?
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Stanley
Local Historian & Old Fart
36804 Posts
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Posted - 21/12/2008 : 13:45
Tension mounts..................
Stanley Challenger Graham
Barlick View
stanley at barnoldswick.freeserve.co.uk |
Tizer
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Posted - 22/12/2008 : 11:36
Perhaps he's been told to wallpaper the bedroom like Big Kev.
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panbiker
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Posted - 28/12/2008 : 16:11
Not at all Tiz, just seen my eldest son Dan and partner Laura complete with new grand daughter Ruby off back to Stratford after spending Christmas with us. Laura's daughter Neve made sure we could not see the carpets since Christmas Day morning!
New Year resolution to forward the project.
Ian |
Amateur Radio Homebrew (Another Shed Culture)
