Marius Hauki wrote:
>Yes, that is an option. However if someone accidentically removes
>Bminus connector before Bplus connector and the interchassis ground
>strip has been disconnected or has a bad connection, the whole RF deck
>could rest at Bpluss.
You're right!
>I would like a bullet proof and "contest proof" solution.
Try this:
<http://www.ifwtech.co.uk/g3sek/in-prac/best-of.htm#0901>
and download the PowerPoint presentation.
You have already identified that a remote HV power supply should be
'slaved' to the control circuit that is located in the amplifier. The
'HV enable' line from the control circuit should supply the operating
voltage to the HV contactor. This line should be routed from the control
circuit to the HV power supply in the same cable as the HV-minus
(B-minus) return and a ground connection.
The use of a single multi-pole connector (for example a 5-pole XLR)
ensures that the HV power supply cannot operate without *all* the
necessary connections being present.
>One thing that could be dangerous about the SHV connector is that
>someone (not me) can try to plug it into an existing BNC socket,
>however I guess that is not possible without force due to the design of
>the connector.
>
If you look more carefully at an SHV connector (download the data sheets
containing the detailed drawings) you will see that it cannot possibly
be connected to a BNC, not even by force.
The dangerous one is MHV, because a BNC plug can be inserted into an MHV
socket with only a moderate amount of force.
--
73 from Ian GM3SEK
http://www.ifwtech.co.uk/g3sek/boards
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