[BC] Early Rigid Coaxial line 2

Ron Cole rondcole
Tue Nov 22 14:13:41 CST 2005


In 1981 I rebuilt a 12 Bay RCA Batwing TV Antenna,
Seems we bought the new feed lines from Dielectric.
If memory serves they were 7/8" aluminum Semi rigid lines that bolted to the
elements and attached to a power splitter. Seems there were 6 Bays per Power
splitter. The Power splitters were 3 1/8" and the transmission lines up the
tower were 6".
All of it was 51.5 ohm stuff, from the Transmitter to the Antenna.


Ron

On 11/21/05, Stanley Adams <stanleybadams at yahoo.com> wrote:
>
> Or am I all wet and RCA sold all of their hard line
> along with antennas to Dielectric?
>
> I know that the later is true, but how does Prodelin figure
> into all of this? Much of the early history is gone as this
> provider has gone bankrupt a couple of times and the dogs picked up the
> scraps and the early business is probably gone.
>
>
>
>
>
>
> Much of the very early hard line was made by RCA Products Division, which
> included their antenna lines. This was later spun off and became the
> Prodelin Company. Prodelin is still in business as part of the General
> Dynamics Gabriel, Prodelin, CSA/Jay Antennas line. Alsimag (American Lava)
> in Chattanooga, TN. made those steatite insulators.
>
> Mr. Andrew of Andrew Electronics also made some rigid transmission line
> sections and furnished some of the early post WW 2 FM antenna bays.
> They also used Alsimag components.
>
> http://www.antiquewireless.org/otb/alsimag.htm
>
>
> Stanley Adams
> Memphis
>
>
>
>
>
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