Can anyone please help me find copper tube for a pi-tank
coil for a 160 thru 10m 4CX1000A amp?
8mm O.D. is easily obtained but I need 4 or 5mm
OD, and a continuous piece about 5m (16ft) long.
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.
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
--
FAQ on WWW: http://www.contesting.com/ampsfaq.html
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
Search: http://www.contesting.com/km9p/search.htm