Speaking of 450 ohm open wire, what is the best way to get
the wire into the shack? The flexible strip under the window
doesn't get it any more.
Bill W5EC
At 01:54 PM 6/6/97 -0400, you wrote:
>Before you spend $65 PER RELAY, suggest doing a little snooping about the
>other various surplus houses - Fair Radio in Lima, Ohio would be one
>suggestion. Bob Grinnell's Surplus Sales is the LAST stop unless one has
>more money than.....
>
>Bests,
>
>Patrick
>
>
>>>Re all the recent posts about the RCS8V coax switch. How is the best way
>>>to remotely switch 450 ohm twinlead? I will have 3 arrays which are fed
>>>with twinlead. I want to individually switch these to an outside remote
>>>matching unit...-snip-
>>
>>>Anyone have any
>>>experiences or thoughts on this? Does anyone (Antenna Mart, Dunestar,
>>>etc.) make such a unit?
>>
>>Aloha Henry,
>>
>>The relay you want and need is at Surplus Sales of Nebraska. I just
>>bought two of them for switching my four v-beams planned for set-
>>up this Summer. The perfect unit, ceramic bases, is an Advance
>>Relay, built by the Elgin National Watch Campany (years ago!).
>>
>> Model AT/2C/115VA DPDT
>>
>>The ceramic base is 2 1/2 by 3 1/2 inches by 1/4 in thick.
>>
>>The ribbon lead which carries each side of the 450 ohm
>>circuits are about 1/4 inch wide and spaced 2 inches inside
>>edge to inside edge of the ribbon. Will certainly carry the
>>Pout of my 87A (but don't try hot switching!).
>>
>>There can be no "bump" of impeadance using these that will amount
>>to any problem. Only caveat is the use of 115VAC coils, but
>>not a big deal. All the coax antenna relays etc. of the '50's
>>were also using 115VAC, E.F.Johnson used them in the KW
>>Matchbox'x for example. I paid $65 each for the relays, and
>>was thrilled when I saw the quality of construction!!
>>
>>Send an e-mail to Bob Grinnell at Surplus Sales, Nebraska:
>>
>> grinnell@probe.net
>>
>>and he can tell you how many he has left, etc.
>>
>>Good luck on your project!
>>
>>73, Jim, KH7M
>>On the Garden Island of Kauai
>>
>>
>>
>>--
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>>
>>
>
>
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