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OTL Asylum OTL, Output Transformerless Amplifier User Group. |
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In Reply to: Re: less is more posted by Lew on September 8, 2006 at 12:12:12:
Lew - I have done just that ! - since the old drawing that I have does not show the Output P/S ..I searched around for details & ideas . With Pauls vast experience in this area , I decided to use his principle that you mention * from his notes * . The CRC method drops the ac ripple to a great reduction from the entry to the caps banks .
Ive used 6x 2200 uf caps ..3 per p/s bank ...no extreme caps here - just used low ESR type from the UK - was approx 50 USD each , and CRC them with ( CAP + 0.47 CAP + 0.22 + CAP ) ...I did this on both sections of each cap .... Thanks Paul ! - I am very satisfied with the results . I did mess up with the VA rating of my output section tho - Paul mentioned 470 VA I think ...I have fitted 500 + 500 ! ...so is a 1 KVA @ 100 vac . I took the value of 470 VA as the rating per bank .... And when I had my toroids wound in australia , they made them for me at 500VA per winding . Does take up some precious room . Less is more indeed ...and I have a very uncluttered chassis , and the less components in the build,the better I feel about the results . Stu
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- Re: less is more - Satelliteman 00:30:50 09/09/06 (0)
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