Try gas pipe used in caravans.
Steve
-----Original Message-----
From: Mark Marsden <MM@plextek.co.uk>
To: amps@contesting.com <amps@contesting.com>
To: <amps@contesting.com>
Date: 28 April 2000 09:15
Subject: [AMPS] Copper tube - semi-rigid
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>Can anyone please help me find copper tube for a pi-tank
>coil for a 160 thru 10m 4CX1000A amp?
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>8mm O.D. is easily obtained but I need 4 or 5mm
>OD, and a continuous piece about 5m (16ft) long.
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>Alternatively I'm considering winding a coil out of
>Quickform 141, a semi-rigid cable similar to RG402,
>it's available in 5m lengths - which RG402 isn't.
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>I plan to feed B+ though the inner core (from the 50 Ohm
>end, to simplify the RFC requirements) using coax or
>feeding a silicone rubber sleeved wire through tubing
>
>Any comments?
>
>Mark, G4AXX, M4R Granta Contest Group
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