In the UK Smith's metals (www.smithmetal.com), although really a
wholesaler, will also supply relatively small quantities of Ally to
credit card buyers. They do have 1/2 inch 18 SWG (Imperial) drawn
tubing (6082) but it's frightfully expensive when compared to 16 SWG
extruded.6082 (Think it was almost twice the price). As my Yagi was
only a 6 ele and I come from Yorkshire I went for the 16 SWG however I
now pay the price every time the darn thing goes up up in a contest.
So, does anybody know if this price difference is to do with the
supplier or is it to do with the manufacturing process?.
John G3UUT
DAVE WHITE wrote:
> For those in England, A.S.C. Metals in Lincoln are a good source of cheap-ish
> offcuts. They have sheet materials and aluminium angle and tubing. It's
> possible to get things a lot cheaper cash in hand when the boss is there!
> Maddeningly, however, 17 gauge .058" wall hard drawn tubing for antennas is
> impossible to find around here ... unless someone knows a UK source?
> cheersDave G0OIL
>
> --- On Wed, 15/9/10, Roger <sub1@rogerhalstead.com> wrote:
>
> From: Roger <sub1@rogerhalstead.com>
> Subject: Re: [Amps] Sourcing Sheet Aluminum
> To: amps@contesting.com
> Date: Wednesday, 15 September, 2010, 4:45
>
>
>
> On 9/14/2010 11:37 PM, Patrick Barthelow wrote:
>
>> Another post on the reflector recently asked about best alloys of aluminum
>> to use in Ham/Amp related projects, a good question, that
>> I dont know the answer to, just that I remember T-6 alloy is hard stuff.
>>
> It may be hard but it's relatively easy to form, holds its shape, and is
> strong. It is used to form not only aircraft skins, but aircraft skins
> that serve as structural members, or individual structure members
> themselves. It's also relatively easy to tap, or press screw heads into
> it...again I've forgotten the name of them. With skill the stuff can
> even be formed into complex shapes, but that's beyond most of us here.
>
>
> Too often people choose much softer grades that are easily scratched
> and deformed.
>
> 73
>
> Roger (K8RI)
>
>
>
>> This is a tip to source sheet aluminum cheaply. Find your local Dep of
>> Public Works, the Road Maintenance crew. Go directly to their coporation
>> yard, or ask for their forman over the phone. Tell them you are a ham
>> looking for some aluminum for a Hombrew project, and ask it they have any
>> discarded road signs. It has been my experience that there is ofen a stack
>> of old signs somewhere off in a corner of the shop, that never gets
>> forwarded to recycling or whatever. The foreman, if he is a ncie guy, on a
>> good day, may simply direct youto the aluminum pile or old sign stack in the
>> back, and say take what you want. Leave him off a six pack of soft drinks
>> or 807s an he will be your friend for a long time. It is amazing how big
>> a stop sign is when it is set on your workbench. The signs' paint I saw
>> were usually pretty old, and weathered, but the aluminum was often very good
>> shape. Unfortunately so far is is usually hard and brittle so
>>
> won't bend well, but, the sheet siz
> es
>
>> are substantial and the price is right. A little polishing or orbital
>> sanding will get the aluminum to a nice surface sheen, and perfectly usable.
>>
>> Best Regards,
>> 73, de Pat Barthelow AA6EG apolloeme@live.com
>> http://www.cq-vhf.com/vhf_highlights/2010_vhf/2010_summer_vhf/2010_summer_vhf_echoes_barthelow.pdf
>>
>>
>> MOONBOUNCE YURI'S NIGHT
>>
>>
>>
>>
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>>
>>
>
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