This article describes how to rebuild a matching unit of a Cushcraft R5
vertical -- by --G0WCW

http://www.mrs.bt.co.uk/mrs/r5/

Nice work!
http://www.mrs.bt.co.uk/mrs/r5/DSCN2478.JPG
Enclosure

The box is from maplin, product number YM91Y and is one of their 'IP
enclosure' range. The box is 150 x 110 x 70mm in size (product codes YM91Y -
grey, YM93B - grey with clear lid). Cost is around six UK pounds.

It is physically the same size as the Cushcraft variant, but the PCB has
to be slightly 'nibbled' at the corners to get it to fit inside the newer
box. I'd say the original Cushcraft enclosure isn't that good as they used
steel screws into brass fixings. The screws rust over and then shear off. In
my view, the Maplin IP enclosure is a better solution to outdoor use (IP56
rated).

"Jimmie D" wrote in message
...

"gb" wrote in message
. ..
This article describes how to rebuild a matching unit of a Cushcraft R5
vertical -- by --G0WCW

http://www.mrs.bt.co.uk/mrs/r5/

Nice work!
http://www.mrs.bt.co.uk/mrs/r5/DSCN2478.JPG
Enclosure

The box is from maplin, product number YM91Y and is one of their 'IP
enclosure' range. The box is 150 x 110 x 70mm in size (product codes
YM91Y - grey, YM93B - grey with clear lid). Cost is around six UK pounds.

It is physically the same size as the Cushcraft variant, but the PCB has
to be slightly 'nibbled' at the corners to get it to fit inside the newer
box. I'd say the original Cushcraft enclosure isn't that good as they
used steel screws into brass fixings. The screws rust over and then shear
off. In my view, the Maplin IP enclosure is a better solution to outdoor
use (IP56 rated).




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

Lamont - The Shadow Knows

Might try this page (from EI7BA)- Lots easier to read!

http://www.iol.ie/~bravo/r7_vertical.htm
And think should act the same, electrically, Jim NN7K


gb wrote:
This article describes how to rebuild a matching unit of a Cushcraft R5
vertical -- by --G0WCW

http://www.mrs.bt.co.uk/mrs/r5/

Nice work!
http://www.mrs.bt.co.uk/mrs/r5/DSCN2478.JPG
Enclosure

The box is from maplin, product number YM91Y and is one of their 'IP
enclosure' range. The box is 150 x 110 x 70mm in size (product codes YM91Y -
grey, YM93B - grey with clear lid). Cost is around six UK pounds.

It is physically the same size as the Cushcraft variant, but the PCB has
to be slightly 'nibbled' at the corners to get it to fit inside the newer
box. I'd say the original Cushcraft enclosure isn't that good as they used
steel screws into brass fixings. The screws rust over and then shear off. In
my view, the Maplin IP enclosure is a better solution to outdoor use (IP56
rated).

Jim-NN7K wrote:

Also, for repair of the traps them selfs, check out

http://www.telusplanet.net/public/te...craft_trap.htm




Might try this page (from EI7BA)- Lots easier to read!

http://www.iol.ie/~bravo/r7_vertical.htm
And think should act the same, electrically, Jim NN7K


gb wrote:
This article describes how to rebuild a matching unit of a Cushcraft
R5 vertical -- by --G0WCW

http://www.mrs.bt.co.uk/mrs/r5/

Nice work!
http://www.mrs.bt.co.uk/mrs/r5/DSCN2478.JPG
Enclosure

The box is from maplin, product number YM91Y and is one of their 'IP
enclosure' range. The box is 150 x 110 x 70mm in size (product codes
YM91Y - grey, YM93B - grey with clear lid). Cost is around six UK pounds.

It is physically the same size as the Cushcraft variant, but the PCB
has to be slightly 'nibbled' at the corners to get it to fit inside
the newer box. I'd say the original Cushcraft enclosure isn't that
good as they used steel screws into brass fixings. The screws rust
over and then shear off. In my view, the Maplin IP enclosure is a
better solution to outdoor use (IP56 rated).

"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

On Nov 3, 5:41 am, "gb" wrote:
"Jimmie D" wrote in message

...

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

Jimmie


Jimmie -

Contact me, my callsign AT arrl.net (or -- at QRZ Q&A)

I am rebuilding two Cushcraft R7 presently and just finished a
Cushcraft R5 --
I will have the vendor sources, part numbers, parts sources, etc.
to get both of those antenna fully operaitonal again.

Greg
W9GB