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Trafo choice for 15W, LM1875 based ss-amp

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  • #31
    It's alive!!

    Yesterday I finished the amp and it's alive!!
    It's very quite, no noises, cracks or hisses. There was a little 50Hz hum but I guess that's because I didn't use a grounded wallsocket. The preamp is running on +/- 18V and is doing just fine. Guess that the lifetime of the chip is shortened by running on it's max. voltagerating, but I can change it quite easily if I need to.

    Didn't really had the time to test out the amp because my daughter already was asleep (and my wife wanted to watch her favorite tv-show...) But first impressions are good. I build the preamp of a Marshall Lead 12 and it definitely has the Marshall flavour, especially with the high-input it rocks like crazy.
    This evening i'll make some time to test it at volume and to hear what it is capable of. Very curious!
    Last edited by Rutger; 03-24-2011, 10:18 AM.

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