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Old November 3rd 07, 11:41 AM posted to rec.radio.amateur.antenna
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Posts: 76
Default Cushcraft R5/R7 Matching Network (MN-7) Rebuild


"Jimmie D" wrote in message
...

Anyone have a schematic of the matching network. I have two antennas and
both are missing the box.


Jimmie


See URL:
http://www.pa0fri.geerligs.com/

Click on ANT, then green dot next to Cushcraft R5, maintenance and repair


Just what I needed, I had bought two antennas at the Shelby hamfest
getting them mostly for tubing and hardware. I may be able to get them on
the air. The fiberglass insulators on mine are shot, Im not sure how I
will repair them. Im thikinking about cutting back the rotten part and
then building it back up with glass cloth and resin.

Jimmie


With the web sites below -- you can build a new R5/R7.
Check A0FRI web page for recommendations on insulator repair.

You could also contact Tom, A9KW at ZeroFive antennas --- IF uses oil filled
nylon
for his vertical insulators
http://www.zerofive-antennas.com/

R5/R7 Matching Unit rebuild by G0WCW (photos and parts list)
http://www.mrs.bt.co.uk/mrs/r5/

R5/R7 vertical maintenance by John Tait, EI7BA
http://www.qsl.net/ei7ba/r7_vertical.htm

R5/R7 Coaxial Capacitor Trap repair by VE6LB
http://www.telusplanet.net/public/te...craft_trap.htm

R5/R7 Repair and Maintenance by A0FRI
http://www.xs4all.nl/~pa0fri/Ant/R5/onhr5eng.htm

Troubleshooting Cushcraft vertical traps (Ed Hammond)
http://www.iol.ie/~bravo/Troubleshooting%20Traps.htm

gb




 
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