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Post by Ex_Vintage on Jan 24, 2021 12:35:07 GMT -5
I found this little relay to allow control of virtually anything from the trigger output of my TA-100. I put the relay in an extension chord and am using it to control power on of an old Kenwood amp. The open circuit voltage of the trigger output is about 16v and when the relay is energized, the voltage drops to about 14v. The relay draws 40 milli-amps when energized and will switch 10A at 250VAC (so they say). 5 bucks for the relay and a few for the extension chord,. The use of this from a trigger output of your equipment, you can control virtually anything. Nice!  |
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DYohn
Emo VIPs 
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Post by DYohn on Jan 25, 2021 9:59:29 GMT -5
And if you are not into DIY or worried about safety, there are plenty of triggered power strips available on the market.
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KeithL
Administrator 
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Post by KeithL on Jan 25, 2021 11:37:28 GMT -5
There are a bunch of folks who make exactly what you're asking about... And some of them come in nice little enclosed cases... Here are just a few: (note that they are NOT listed as "trigger controlled power strips"... but that's exactly what they are.) bc-robotics.com/shop/iot-power-relay/
And here's a big fancy expensive one:
I found this little relay to allow control of virtually anything from the trigger output of my TA-100. I put the relay in an extension chord and am using it to control power on of an old Kenwood amp. The open circuit voltage of the trigger output is about 16v and when the relay is energized, the voltage drops to about 14v. The relay draws 40 milli-amps when energized and will switch 10A at 250VAC (so they say). 5 bucks for the relay and a few for the extension chord,. The use of this from a trigger output of your equipment, you can control virtually anything. Nice! |
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Post by megash0n on Jan 25, 2021 13:49:46 GMT -5
shelly.cloud/products/shelly-1pm-smart-home-automation-relay/So many different directions to go on this one, but for ease of use, I highly recommend the Shelly products. One cool feature is that you can use low voltage dc or high voltage ac on the "trigger" side of the relay. It is a bit more flexible in general or reuse later for a different project. It can be used with any sort of "mechanical" switch to toggle the output and/or be toggled wirelessly, on schedule, etc. This particular one monitors power and provides a 16 AMP relay. They have many items you can look at. I think their web interface is pretty nice. I have numerous versions of the original one posted in this thread. Some with a HAT for an ESP01 wireless device.
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Post by knucklehead on Jan 25, 2021 14:26:41 GMT -5
I've been using a wireless outlet controller for a few years. It has 5 outlets controlled by a single remote. I use it on my tube integrated to prevent popping when I shut it off. And because I'm lazy! |
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Post by Percussionista on Jan 25, 2021 22:27:43 GMT -5
I'm looking for a trigger controlled power strip that takes a 3.5mm mono cable as trigger input, just like the EMO outputs on the XMC-2 et. al. Not happy/confident with trying to strip such a little cable and figure out the correct way to attach the inside bare wire.
I want to do something really prosaic - turn on the TV's back-light when I turn on the XMC-2. I wish I could also trigger on the Emo MP-2 amp with a 3.5mm cable, but it also wants bare wire.
There might be another way to do the light turn-on, with a power strip that has a master socket that detects when that component is turned on, and then opens up power to the remaining sockets. The one I currently have doesn't work in this case (Belkin). I had another one once before that even allowed some "tuning" of the sensitivity. The MP-2 and SW are on a separate circuit so can't be done that way.
There are a bunch of folks who make exactly what you're asking about... And some of them come in nice little enclosed cases... Here are just a few: (note that they are NOT listed as "trigger controlled power strips"... but that's exactly what they are.) bc-robotics.com/shop/iot-power-relay/ |
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Post by Ex_Vintage on Jan 26, 2021 11:25:41 GMT -5
The unit that Keith references looks like a fairly decent solution. Stripping wires would be required though.
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KeithL
Administrator
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Post by KeithL on Jan 26, 2021 12:03:50 GMT -5
To be honest I haven't seen a relay with a 3.5mm mono connector on the control input in quite some time. Most of the current ones are intended to be connected to something else in some sort of "whole home control system". (The little green block is called a Phoenix connector... and can be unplugged from the main unit for easy wiring.)
If you're really worried about the tiny wires you can use something like this at the other end...
Then you can connect them together with some nice 18 gauge speaker wire instead of the thin stuff... 
I suspect that particular relay unit will work with the wires in either direction... But, at worst, they'll work one way and not the other.
I'm looking for a trigger controlled power strip that takes a 3.5mm mono cable as trigger input, just like the EMO outputs on the XMC-2 et. al. Not happy/confident with trying to strip such a little cable and figure out the correct way to attach the inside bare wire. I want to do something really prosaic - turn on the TV's back-light when I turn on the XMC-2. I wish I could also trigger on the Emo MP-2 amp with a 3.5mm cable, but it also wants bare wire. There might be another way to do the light turn-on, with a power strip that has a master socket that detects when that component is turned on, and then opens up power to the remaining sockets. The one I currently have doesn't work in this case (Belkin). I had another one once before that even allowed some "tuning" of the sensitivity. The MP-2 and SW are on a separate circuit so can't be done that way.
There are a bunch of folks who make exactly what you're asking about... And some of them come in nice little enclosed cases... Here are just a few: (note that they are NOT listed as "trigger controlled power strips"... but that's exactly what they are.) bc-robotics.com/shop/iot-power-relay/ |
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Post by Percussionista on Feb 4, 2021 16:32:03 GMT -5
That Billmill connector looks perfect to connect up to the MP-2, especially since I don't have to guess which side is plus or minus. For the TV back-light turn-on I got another master/slave power strip with variable sensitivity and it works fine to have the light go on when the TV is turned on (and also supply power to the disc player; only saves a little bit of phantom power, but why not). To be honest I haven't seen a relay with a 3.5mm mono connector on the control input in quite some time. ...
If you're really worried about the tiny wires you can use something like this at the other end... |
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