[Amps] T/R relays for 2M

[John G3UUT]

Beware of trying to speed up coax relays by putting an initial over 
voltage on them.  I tried this with a 26 V Radial relay, I put a DC 
voltage on the contacts and observed the result on a scope.   It did 
speed it up but because the contacts were moving faster, they bounced 
which they didn't do with the normal voltage.  In the end the time for 
them to settle after the bounce was the same as with the normal voltage.

73 John G3UUT


On 02/06/2011 17:36, Gary Smith wrote:
> RF Parts has them.
> Gary...wa6fgi
>    ----- Original Message -----
>    From: Gary K9GS
>    To: AMPS Mailing List
>    Sent: Wednesday, June 01, 2011 7:31 PM
>    Subject: [Amps] T/R relays for 2M
>
>
>    A friend recently purchased a 2M amp.  This amp does not have any T/R
>    switching but does have 12V DC available.  Can anyone recommend a
>    suitable relay to use for the input and output?  Output power of the amp
>    is 700-800W.
>
>
>    --
>
>
>    73,
>
>    Gary K9GS
>
>    Check out K9NS on the web:  http://www.k9ns.com
>    Greater Milwaukee DX Association: http://www.gmdxa.org
>    Society of Midwest Contesters: http://www.w9smc.com
>
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