On Thu, 14 Oct 2004 15:23:24 +0000, K4SB wrote:
>The keying circuits shown on Don's web page are tried and trusted.
>They can be built in about 15 mins. I enclose mine on a 5 pin phenolic
>strip from RS and then put it in an
>empty Rx bottle with holes drilled in each end for the cables.
_________________________________________________________
The circuit can also be built inside the DB-9 connector. On mine, I
built and tested the circuit and after making sure it worked, filled
up the inside of the connector with RTV silicone, completely
encapsulating the circuit. Use the type of silicone made for sealing
aquariums because it has no corrosive acid fumes.
It's been in use for ten years now with no problems.
--
Bill W6WRT
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