Push Button Speaker Box with Built in FM Receiver - As presented at the Perth 2023 Mini

One really quick mod you could do to that design to make it "interactive":

Rewire the ground to go to the common of the timer relay.
This means it'll either switch to the NC (when timer is not on) or NO (when timer is on).
The NO then goes to the speaker relays, keeping the logic the same.

BUT- the fun bit- you now hook the arcade LED up to the NC on the timer.
This way, when the sound is off, the LED is illuminated. Once the button is hit, the speakers will turn on and the button will extinguish :)



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Skymaster said:
One really quick mod you could do to that design to make it "interactive":

Rewire the ground to go to the common of the timer relay.
This means it'll either switch to the NC (when timer is not on) or NO (when timer is on).
The NO then goes to the speaker relays, keeping the logic the same.

BUT- the fun bit- you now hook the arcade LED up to the NC on the timer.
This way, when the sound is off, the LED is illuminated. Once the button is hit, the speakers will turn on and the button will extinguish :)



View attachment 26506
Click to expand...
See, this is why I love this forum. Really good idea!

This would give a nice interactive feel to the button! Nice!
 
finally hooked it up and put it in place for some testing today.

Button works great (did Skymaster mod for the button), and it receives the signal fine, however I get a lot of background static noise, and it really is noticeable.

I've got everything, including the meanwell inside the box, so I'm guessing the meanwell is my noise source.

How have you been able to silence this annoying static like sound, or do you have your psu separate from the box ?
 
bpratt said:
finally hooked it up and put it in place for some testing today.

Button works great (did Skymaster mod for the button), and it receives the signal fine, however I get a lot of background static noise, and it really is noticeable.

I've got everything, including the meanwell inside the box, so I'm guessing the meanwell is my noise source.

How have you been able to silence this annoying static like sound, or do you have your psu separate from the box ?
Click to expand...
I finally did a full setup outside rather than just a very low volumes when i got it all to work. Like you I got a lot of static background noise. It was horrible, way worse than the amp I used in the original design. I tried various inputs, FM, direct, by-passing components and in the end, it was just a really poor-quality amp. Waste of $30.

I ended up going out and purchasing a second hand 240v Stereo amplifier/receiver. Lots more power. If you wanted to replicate this, you just need to ensure that the amp has a physical on/off button so that you if you turn off/on the power for your wall outlet, the amp turns on/off etc. Other than that, any home theatre / 2-channel gear would be great.

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Updated Wiring Diagram with external amp
This wiring diagram now functions as just a time delay relay for the push button. No FM Receiver, no amp, no frills. Your setup will need to be able to have speaker cables from the amp to your speakers. For my setup, I will have the amp in the roof space, speaker cables running to outside where it will hook into the time delay box, then to the speakers. Its not something that will work as well for everyone but given how may wires are going in/out of our houses, what's one extra hole your house!


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Really hope this is the last update to this box i need to make!
 
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Just my 2 cents worth that worked for me....In My experience with eliminating the static...I invested in Shielded RCA cables my go to cables I bought 7 years ago for My FM transmitter and to my speakers were the "Evergreen" range of RCA cables....I thought well with all the cash splashed on lights and power supplies and all the Bunnings trips...I bought these cables after using alot cheaper non shielded cables and had continuous static...put these Evergreens in the mix and voila..static went completely...just what worked for me and My FM transmitter is really close to my controller and power supplies and network switch so alot of "noise" would be generated one would think...these shielded cables really helped and completely got rid of the static problems for me....
link from where I bought them 8 years ago for my first show...alot more expensive now but shop around and you might be able to snap up a bargain for them....

https://www.audiotrends.com.au/catalogsearch/result/?q=evergreen
 
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