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Old 7th March 2005, 10:39 PM   #1
Raoul is offline Raoul  United States
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Default BoSoZ PSU Question

I currently have a BoSoZ powered by one power supply board. The power supply is being fed by two toroids that I purchased from Apex Jr. They are rated at 28.4 volts (dual seondaries) at about 150VA.

I have a second power supply board already built. My question is: would it be beneficial to split each secondary of the transformers into two lines, giving an effective total of 4 secondaries per transformer, and power two seperate power supply boards with one transformer each?

Thanks in advance for any advice.
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Old 8th March 2005, 02:01 AM   #2
eLarson is offline eLarson  United States
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It wouldn't hurt your imaging, I reckon.
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Old 8th March 2005, 07:03 AM   #3
Raoul is offline Raoul  United States
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Thanks for the reply, eLarson. That's what I was thinking. I think the Avel transformers Nelson used were rated for 60VA total, so I figured that, at 150VA, these had enough juice behind them. I just wanted to make sure I wasn't going to run into some problem I didn't foresee...some of my electronics "expertise" is pretty crude.

Thanks again for the reassurance.
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Old 8th March 2005, 02:44 PM   #4
eLarson is offline eLarson  United States
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In terms of the size of the toroids, even 60VA is plenty big for a preamp. It is the isolation of the channels that might help a touch. Whether you hear it will depend on what happens in the amp, the speakers, the room, your ears, your mood. Stuff like that.

Erik
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Old 8th March 2005, 03:44 PM   #5
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I'm working on the same thing right now. How would you wire the transformers and power supply boards? Would the Thermistors tie to the same ground point?

Vince
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