[Boatanchors] AC inputs?

[eugene at hertzmail.com]

Hi Bob. Transformer primaries say 115 which is where its connected.  I
think its right because the secondary says "0, 26v, 27v, 28v, 29v" for
each tap and my ac voltmeter reads that when I connect it. 

This unit is probably 80s TMC equipment. All solid state. For photos,
see:
http://www.hertzmail.com/tmc/

Would you suggest I bypass the neutral fuse? 
Eugene


-----Original Message-----
From: rrkrr [mailto:rrkrr at comcast.net] 
Sent: Sunday, April 29, 2007 12:04 AM
To: eugene at hertzmail.com
Cc: boatanchors at mailman.qth.net
Subject: Re: [Boatanchors] AC inputs?

Eugene,
How old is this piece of equipment?  Are you sure it is wired for 
115-125V where one side is "hot" and the other "neutral" and is not a 
balanced 230-250V system where two sides are "hot"?

In any case the present standard is that the neutral line should not be 
fused, especially in a system where there is no ground wire.  This is so

that a fault will always cause the hot side fuse to blow leaving the 
other connected external wires at ground potential (or very nearly).

Bob K4ERR



eugene at hertzmail.com wrote:
> Hi All,
>
> Picked up a TMC antenna multi-coupler.  It has a 3-pin mil connector
> that thanks to folks here, I have ordered the mating connector to make
a
> cable. Question has to do with hot/neutral.
>
> So I was investigating how to wire this up and was trying to figure
out
> which pin is hot and which is neutral.  Ground was easy to figure out.
> Far as I can tell, it shouldn't matter on this which is which, but I
> wanted to check with the experts. 
>
> The two wires (hot and neutral) come in from the connector. Each
passes
> through a fuse (the neat kind that light up when the fuse has blown!)
so
> far, since both sides are fused, I think I'm ok. Then the fused sides
go
> to a DPST on/off switch. So far so good.
>
> Then these switched wires go directly to the primary of the power
> transformer...So it seems to me that there is no specific hot and no
> specific neutral.
>
> Can anyone confirm that some equipment is build this way and that it
> might not matter?
>
> Thanks
> Eugene
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