[Amps] Multiple Amplifier Switching Box

[Jim Barber]

Sorry, I finally noticed that your box wants to be on the 100-watt
end of things.

Make that RG303 instead. There are scrap lengths on eBay here and
there, do a search for RG303 .

Also - there may be better relays than those. There have been several
threads go by on the subject, do a list archive search on "RF Relay".

73,
Jim N7CXI

----
The best deal a casual Google search turned up was RG393 at $13.20/foot 
from Tessco:
http://www.tessco.com/products/displayProductInfo.do?sku=57757&eventPage=1

I saw 139 feet on eBay, but it was outrageously priced.

73,
Jim N7CXI

On 8/22/2012 3:43 PM, Mark Robinson wrote:
> I am planning on building a switching box, so that my hf transceiver can
> drive one of three linear amplifiers. I have some Omron 24V contactors
> MP2-24VDC. These are rated at 25A resistive 277 VAC. They have a coil
> operated shorting bar that closes across 2 contacts, so I guess they are
> contactors. Will these be OK to switch the inputs to the linears, the PTT
> line and the outputs of each amplifier to the antenna. Since each contactor
> has 2 sets of contacts separated by the coil, I figure that I wil need six
> of them in my box.
>
>
> I have heard that Teflon 50 ohm coax is good to use for the internal hookup
> within the box that I am building. Is this a good idea and does anyone know
> of a good source for 50 ohm Teflon coax.
>
> 73 Mark N1UK
>
>
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