DIY > CB radio PSU for SBTouch...

[jonnoshore]

Following some googling and thread reading I came across this thread elsewhere about CB power supplies...

http://theartofsound.net/forum/showthread.php?t=5893

So I thought about having a go to create a linear PSU for my new squeezebox...

This is the start of the project...
http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=110844542229

And we'll see when it arrives how much space is within the box

 

[kenb]

I tried a CB power supply and although it was relatively easy to get the required voltage I found that the transformer was very noisy.
I hope that you have more luck with yours.

 

[Space is the Place]

I think the CB PS/transformer on the AOS forum is pretty much exactly the same as the one a friend gave me for use with the Dacmagic Plus. It was fairly easy to turn down the the output to 12V, it's not noisy (at least i can't hear it!) but i can feel a tiny bit mechanical vibration from it if i put my hand on it.

 

[chrism]

Thought that I sould mention that the Touch is max 5 Volts not 12 Volts. It will go bang at that voltage so please beware!

The Maplins regulated one won't go as low as 12v unfortunately.

Regards

Chris

 

[jonnoshore]

I did plan to use another stage of regulation if there was space and it has at least a cable, tranformer (if not noisy) and case... We'll see when it arrives what is involved.

 

[chrism]

The regulator in The Maps Benchy is poor quality. The Linear PSU's I made for my SB Classic and are based on Avondales TPR2 regulators. They will do 1A with a large heatsink. The Touch will work with a 1A supply (max about 800ma on start up then drops to around 550ma).

Regards