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Electrical switch

Discussion of batteries, chargers, wiring, generators, distribution panels, battery switches, etc.
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Topic author United States of America
Wayne162
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Electrical switch

Postby Wayne162 » November 25th, 2015, 3:11 pm

20151121_184308.jpg



The attached photos are of what appears to be a dimmer switch in the master state room of my 1997 Carver 405. It does not work and I don't know what it's for. Can anybody tell me what it does?
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After Taxes
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2004 Carver Mariner 360
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Re: Electrical switch

Postby After Taxes » November 25th, 2015, 4:08 pm

Could it be a remote volume for the stereo?
2004 Carver Mariner 360
MerCruiser MX 6.2
Lake Simcoe, Ontario

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AaHubb
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Re: Electrical switch

Postby AaHubb » November 25th, 2015, 5:11 pm

The technical term is an L-pad. It acts as a volume control for remote speakers while maintaining a constant load to the stereo.
..Aaron
'99 404 CPMY
SeaDragon
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Topic author United States of America
Wayne162
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Posts: 198
Joined: September 5th, 2015, 12:45 am
Vessel Info: 1997 Carver 405
"Change In Latitude"
Home port - Charleston, South Carolina
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Re: Electrical switch

Postby Wayne162 » November 27th, 2015, 8:49 am

Ahh, maybe that is why the interior stereo speakers are not functioning. I will give it a look and see if that is the problem. Thank you.
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waybomb
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1988 Cougar 46 Kevlar Vee offshore
1969 15' Glaspar / 1969 Johnson Electrmatic 85
1964 Barron Flat bottom drag boat
A couple of dinghies
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Electrical switch

Postby waybomb » November 28th, 2015, 1:38 pm

AaHubb wrote:Source of the post The technical term is an L-pad. It acts as a volume control for remote speakers while maintaining a constant load to the stereo.
..Aaron

Can you tell me the "why" one would want a constant load to the amp? Does a built in fader in the head unit do the same thing, meaning, allows for a constant amp load?
Thanks
Fred
1964 Barron Flatbottom with BBC Chevy
1969 Glaspar Avalon /1969 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572s
http://s4.beta.photobucket.com/user/waybomb/library/
Past - 1988 2807, 1989 4207 Aft
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United States of America
AaHubb
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my twin diesel pusher
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Electrical switch

Postby AaHubb » November 29th, 2015, 10:47 am

Yea, my bad. "Load" isn't really the right term. I should have said impedance. An L-pad maintains the impedance (8 ohms) to the amp while varying the signal to the speakers.
..Aaron
'99 404 CPMY
SeaDragon
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Topic author United States of America
Wayne162
First Mate
First Mate
Posts: 198
Joined: September 5th, 2015, 12:45 am
Vessel Info: 1997 Carver 405
"Change In Latitude"
Home port - Charleston, South Carolina
Has thanked: 13 times
Been thanked: 31 times
Contact:

Electrical switch

Postby Wayne162 » November 30th, 2015, 12:04 pm

Thanks all. It appears to be an L-pad.
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United States of America
waybomb
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CYO Moderator
Posts: 1963
Joined: February 5th, 2013, 9:24 pm
Vessel Info: 1987 3697 Carver Mariner
1988 Cougar 46 Kevlar Vee offshore
1969 15' Glaspar / 1969 Johnson Electrmatic 85
1964 Barron Flat bottom drag boat
A couple of dinghies
Location: Saint Joseph and Trenton, MI
Has thanked: 41 times
Been thanked: 283 times

Electrical switch

Postby waybomb » November 30th, 2015, 1:18 pm

AaHubb wrote:Source of the post Yea, my bad. "Load" isn't really the right term. I should have said impedance. An L-pad maintains the impedance (8 ohms) to the amp while varying the signal to the speakers.
..Aaron


Thanks for answering - now I know!
Thanks
Fred
1964 Barron Flatbottom with BBC Chevy
1969 Glaspar Avalon /1969 Johnson Electromatic 85
1987 Carver Mariner
1988 Cougar Kevlar 46' with triple blown 572s
http://s4.beta.photobucket.com/user/waybomb/library/
Past - 1988 2807, 1989 4207 Aft

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