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Old 10th October 2012, 06:32 AM   #1
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Default Hiraga 30 watt. Advice needed

Hi Folks.
I have just purchased 2 Hiraga 30 watt kits from Jims Audio on ebay,

Hiraga super 30W class A amplifier kit ! | eBay

I also purchased the transistors he sells for these kits, but my question is what power supply etc I need for this.
Reading all the info I can on here and on other websites has left me pretty confused as to the best way to complete this project. Some other builders are using massive caps. Is this the way to go? I need advice on the power pcb. Is there a suitable kit and what transformer would be needed?
Any help would be fantastic.
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Old 10th October 2012, 07:12 AM   #2
WSJ is offline WSJ  United States
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The 2SA872 is a 90 V device, 80% of 90 should be good for the power supply.
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Old 13th October 2012, 08:03 AM   #3
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Thank you, but I'm really looking for a suitable pcb kit for the PS, plus reasoning behind the massive caps some circuits are using, and advice on a transformer to compliment the above.
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Old Yesterday, 02:20 PM   #4
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Im also confused about the powersupply. I just purcased the torroid from the chematic (500va, 230-2x25v). It was very expensive.
The caps are expensive to. How much is needed?
Im also wonder if I must make it a regulated powersupply. will that affect thesound quality?
And how much fuses are recomended?
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