The 1988 manual consists of 8 pages. View B on page 4 shows the boom
clamping. There is a 10 inch fiberglass insulator insert 1" diameter
(item95) , a formed alumninum bracket (item 156) used between the boom and
the driven element, and a stainless steel ubolt (item405) to clamp them
together in the two holes.
These are probably available from Cushcraft?
BTW I replaced this antenna with the Steppir Monstr so it is for sale.
----- Original Message -----
Sent: Saturday, January 01, 2011 12:22 PM
Subject: [TowerTalk] 1980s Cushcraft A4
> I acquired a late 70 A4 off a friend late dad. The center of the driven
> element is a black insulated material about 2 inches in diameter that the
> U bolts mount to the boom. There are two 1/4 20 tapped holes that I assume
> were to mount the feed line. As you might have determined I do not have
> the instruction manual. Can I use two brass bolts to connect the feed line
> to? How are they making connection to the tubing? It evidently worked as
> this was up for almost 30 years. Thanks Mike
> TowerTalk mailing list
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