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Solid State

Solid-state ONLY posts here please. Keep that tube stuff to that "other" subforum. ;-)


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  1. Circuit Diagram

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  2. Some new Schiit

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  3. HP 333A Analyzer

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  4. Pioneer SX950

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  • Recent Posts

    • It helps if a component identifier from the circuit board is included when noting that a component has failed.  For the post from January 2023, it is possible the yellow component that burned through is C2, which is a 250V 1 uF capacitor.  I have seen that fail by itself, and replacing it was all that was needed. For the other issue of a dead power supply, check for a short between the external negative pad for C20's negative lead pressing onto the circuit board and shorting through the lacquer insulation, shorting to the positively-charged copper on the top side of the circuit board. The short will not be visible until C20, a 470 uF 200V capacitor, is removed.  That failure appeared to trigger an additional failure, which I have not identified.
    • Over 10 years ago I built new grills for a set of Cornwalls using an article I found online. It described in detail cutting the grills boards, how to build stretchers for the grill, how to glue it up, and more. The grills I made at the time turned out perfect, but it was long enough ago that I've forgotten most of it. The problem is that I've lost the article and can't find it with searches. Does anyone remember this reference? It was an excellent detailed instruction, so I'm hoping someone else saved it.
    • I had to make a change / modification to the tonearm  If you don’t already know ? the tonearm floats on an air cushion and it requires an air pump  The old air pump was loosing air pressure and needed replacing that’s when the search / hunt for a strong but near silent replacement pump began.    Found a replacement pump that is superior to the old one and extremely quiet to near silent at 1mt and fully silent at a short distance Just installed now so a test is required with a favourite album    This is my first pressing of the 1972 UK release  Charisma – CAS 1058, Charisma Vinyl, LP, Album, Textured Gatefold, Red Spine Text   ‘Listening to side 2 as I post and it’s just brilliant SQ    Artist - Genesis  Title - Foxtrot 
    • I really like Schiit products. I have their Jotunheim headphone amp, Bifrost DAC, and Lokius tone control. All use XLR connects. Very enjoyable with my HP-3's.
    • I'm still enjoying my HP-3's. I do get some pressure point fatigue from the headband after an hour or two of quality listening time. I'm looking into adding some padding. They sure offer a good dose of listening enjoyment. Anyone else here have 'em?
    • We can cite many advantages of active digital crossovers over passive analog crossovers, but ultimately it does not matter to some people. I've encountered more than one person who genuinely prefers the sound of passive crossovers over DSP. Since enjoyment of this hobby is so strongly personal and subjective, I'm not about to challenge their opinions. 
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