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Posted by jeff_wisnia on July 2, 2009, 10:01 pm
Mortimer Schnerd wrote:
show/hide quoted text
> I'm looking for a cheap 120 volt relay to use with my stereo system.
> I've got a receiver that has pre in/main out jumpers and so I've added a
> second power amp to it which is a lot more powerful that what's already
> built into the receiver. I'm actually powering three rooms of speakers
> (8 speakers all told); two sets on the receiver's power amp and 4
> speakers in my bedroom off the external power amp.
>
> I want the power to the amp to come on whenever I power up the receiver
> but it's a PITA to get to because of the way it's physically installed.
>
> The AC outlet on the back of the receiver is only rated for 100 watts
> max. The power amp can draw up to 11 amps so the receiver's AC outlet
> isn't going to work.
>
> So what I think I need is a relay. The switched outlet on the back of
> the receiver can power the coil and then the relay can handle the power
> requirements of the external power amp.
>
> So where can I find such a thing? Ideas?
>
>
>
> Mortimer Schnerd, RN
> mschnerd at carolina.rr.com
Yeah, Shack has a socket too, but you'll still have to solder to it's lugs.
http://www.radioshack.com/product/index.jsp?productId=2062476
Jeff
--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.
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Posted by jeff_wisnia on July 2, 2009, 10:05 pm
Mortimer Schnerd wrote:
show/hide quoted text
> I'm looking for a cheap 120 volt relay to use with my stereo system.
> I've got a receiver that has pre in/main out jumpers and so I've added a
> second power amp to it which is a lot more powerful that what's already
> built into the receiver. I'm actually powering three rooms of speakers
> (8 speakers all told); two sets on the receiver's power amp and 4
> speakers in my bedroom off the external power amp.
>
> I want the power to the amp to come on whenever I power up the receiver
> but it's a PITA to get to because of the way it's physically installed.
>
> The AC outlet on the back of the receiver is only rated for 100 watts
> max. The power amp can draw up to 11 amps so the receiver's AC outlet
> isn't going to work.
>
> So what I think I need is a relay. The switched outlet on the back of
> the receiver can power the coil and then the relay can handle the power
> requirements of the external power amp.
>
> So where can I find such a thing? Ideas?
>
>
>
> Mortimer Schnerd, RN
> mschnerd at carolina.rr.com
Oh yeah, I forgot to say wire both sets of normally open contacts in
parallel, that should take care of the 11 amp peak load OK, since they
prolly won't be switching at peak draw times anyway.
Jeff
--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10e12 furlongs per fortnight.
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Posted by Big Bob on July 2, 2009, 10:19 pm
http://www.grainger.com/Grainger/items/4E944
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Posted by John Grabowski on July 2, 2009, 10:52 pm
show/hide quoted text
> I'm looking for a cheap 120 volt relay to use with my stereo system.
> I've got a receiver that has pre in/main out jumpers and so I've added a
> second power amp to it which is a lot more powerful that what's already
> built into the receiver. I'm actually powering three rooms of speakers (8
> speakers all told); two sets on the receiver's power amp and 4 speakers in
> my bedroom off the external power amp.
> I want the power to the amp to come on whenever I power up the receiver
> but it's a PITA to get to because of the way it's physically installed.
> The AC outlet on the back of the receiver is only rated for 100 watts max.
> The power amp can draw up to 11 amps so the receiver's AC outlet isn't
> going to work.
> So what I think I need is a relay. The switched outlet on the back of the
> receiver can power the coil and then the relay can handle the power
> requirements of the external power amp.
> So where can I find such a thing? Ideas?
*I'm thinking that maybe some plug-in modules from SmartHome would work for
you.
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Posted by Jon Danniken on July 2, 2009, 11:42 pm
Mortimer Schnerd wrote:
show/hide quoted text
> I'm looking for a cheap 120 volt relay to use with my stereo system.
> I've got a receiver that has pre in/main out jumpers and so I've
> added a second power amp to it which is a lot more powerful that
> what's already built into the receiver. I'm actually powering three
> rooms of speakers (8 speakers all told); two sets on the receiver's
> power amp and 4 speakers in my bedroom off the external power amp.
> I want the power to the amp to come on whenever I power up the
> receiver but it's a PITA to get to because of the way it's physically
> installed.
> The AC outlet on the back of the receiver is only rated for 100 watts
> max. The power amp can draw up to 11 amps so the receiver's AC outlet
> isn't going to work.
> So what I think I need is a relay. The switched outlet on the back of
> the receiver can power the coil and then the relay can handle the
> power requirements of the external power amp.
> So where can I find such a thing? Ideas?
Get a contactor from Ebay, maybe something like 370220418231
Jon
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> I've got a receiver that has pre in/main out jumpers and so I've added a
> second power amp to it which is a lot more powerful that what's already
> built into the receiver. I'm actually powering three rooms of speakers
> (8 speakers all told); two sets on the receiver's power amp and 4
> speakers in my bedroom off the external power amp.
>
> I want the power to the amp to come on whenever I power up the receiver
> but it's a PITA to get to because of the way it's physically installed.
>
> The AC outlet on the back of the receiver is only rated for 100 watts
> max. The power amp can draw up to 11 amps so the receiver's AC outlet
> isn't going to work.
>
> So what I think I need is a relay. The switched outlet on the back of
> the receiver can power the coil and then the relay can handle the power
> requirements of the external power amp.
>
> So where can I find such a thing? Ideas?
>
>
>
> Mortimer Schnerd, RN
> mschnerd at carolina.rr.com