>Hi all,
>
> I am trying to improve my L-7 and would like to implement high speed
> T/R
>switching, I've got several new Germans Vacuum Relays:
>
> SIEMENS VR 411 26V.
>
>Are this relays suitable for this job?.
A suitable relay would have a rated make time of 8mS or less. This is
not fast enough to obviate hot switching with newer transceivers.
However, by using a simple speedup circuit, such relays can be made to
have a make time of a bit less than 2mS, which is ok. [see Fig 7B at:
www.vcnet.com/measures ]
cheers
Rich...
R. L. Measures, 805-386-3734, AG6K
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