Confusion over repeaters

[russe]

Here's one of Colin's signal pics (and keep 'em coming, Colin):

districtline.fotopic.net/p23204364.html

I'm having my usual confusion over repeaters here. Why is a fog repeater present when the signal already has a repeater on it? Does the fog repeater relate to two signals in advance of A909^A?

Russ

[Deleted]

If you look at the signal plates, it tells you that both the 'normal' repeater and the fog repeater both repeat A909^{b c}, so indeed it IS repeating two signals.

There is nothing unusual about this when the signals are so close together, in this case they are the multi-homes for West Ham eastbound.

[russe]

Thanks Alan. I must re-read my tubeprune.

Edit: For clarification, that repeater will show yellow if either A909^b or A909^c is showing red, yes?

Russ

[Admin Team]

To add a little more to this, I've posted a signal diagram at photobucket.com/albums/v663/districtdave/Odds%20and%20Ends/?action=view¤t=08a80f2e.jpg for the area.

I suppose the only thing to add is that R909BC will only show a green aspect after A909C clears. So, when Colin took that photo A909B may already have cleared, but A909C is still at danger.

Hope that helps!

[russe]

Thanks for the diagram, Dave; you've answered my edit point I think.

I saw a sequence of telephoto pictures referred to here recently, which I believe was probably on that stretch of line, but I can't find the reference. Can anyone remind me?

Russ

[Admin Team]

I think we were posting simaltaneously on this Russ!!!

As far as the photos are concerned I'm sure the 'usual source' will be able to assist on this !

[Tomcakes]

russe said:

Thanks for the diagram, Dave; you've answered my edit point I think.

I saw a sequence of telephoto pictures referred to here recently, which I believe was probably on that stretch of line, but I can't find the reference. Can anyone remind me?

Russ

AFAIK this is on Tubeprune, Ravenscourt Park I think.

[Colin]

russe said:

I saw a sequence of telephoto pictures referred to here recently, which I believe was probably on that stretch of line, but I can't find the reference. Can anyone remind me?

Russ

admin said:

As far as the photos are concerned I'm sure the 'usual source' will be able to assist on this !

Though i'm not exactly sure of what you mean, I can only find one post that would fit in with the request [of what I think you're after]- but the pictures in it have been deleted

[Admin Team]

tombeevers said:

AFAIK this is on Tubeprune, Ravenscourt Park I think.

I think the page you're thinking of Tom is this - www.trainweb.org/tubeprune/Auto%20Sequence%20Photos.htm

[russe]

admin said:

Though i'm not exactly sure of what you mean, I can only find one post that would fit in with the request [of what I think you're after]- but the pictures in it have been deleted

That's a tad uncool, chaps.

Russ

[Deleted]

its because the fog reapeater has a higher voltage and higher wattage bulb in it

100v 33.5W = fog reapeater
14v 12 or 24W(cannot remember if these are right) = main running repeater/signal

so in bad weather the fog repeater should shine a bit better