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Thread: Amplifiers any good..?

  1. #31
    Join Date: Jan 2009

    Location: Essex

    Posts: 18,489
    I'm openingabottleofwine.

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    Quote Originally Posted by RothwellAudio View Post
    John Linsley Hood revisited his original design sometime in the 1980s (or 90s?) in one of the electronics magazines. His article incorporated some slight changes and improvements to the original design as well as explaining the evolution of the design. I'll look it up and post a link if anyone is interested.

    Building one from scratch should be quite possible, but the quality of the casework/heatsinks etc. from Nobsound et al. make scratch-building seem pointless.
    The JLH Class A design and subsequent improvement were published in Wireless World magazine. I built one, then within a few months cannibalised it to build the 10W Nelson-Jones Class A amp (also published in Wireless World), finally to abandon that in favour of a Sugden 12.5W Class A design (I knew someone who knew Jim Sugden. so was able to obtain the PCBs and mains transformer at cost).
    Have you listened to this month's choice in the Album Club?

    Barry

  2. #32
    Join Date: Jan 2009

    Location: Essex

    Posts: 18,489
    I'm openingabottleofwine.

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    Quote Originally Posted by bumpy View Post
    And like always, you would be an absolute mug to believe everything you read on line. They may have copied a circuit diagram, but savings will have been made in the quality of components, unless of course you're impressed by pretty casework
    Agreed - especially the quality of the capacitors.
    Have you listened to this month's choice in the Album Club?

    Barry

  3. #33
    Join Date: Jan 2008

    Location: Forest of Dean, Glos

    Posts: 10,191
    I'm Jerry.

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    Quote Originally Posted by bumpy View Post
    And like always, you would be an absolute mug to believe everything you read on line. They may have copied a circuit diagram, but savings will have been made in the quality of components, unless of course you're impressed by pretty casework

    I'm impressed by good sound.
    Jerry

    Qobuz 16/44 streaming, Topping D30 DAC with lpsu, Herron VTSP-2 valve preamp, Trigon TRE 50M monoblocks, MBL 116F speakers.

    Cables: Wireworld Starlight USB, Ixos Ixotica i/c, W&M speaker cables, Belden 19364 mains cables

    Headphones: Fostex TH600, Audeze EL-8, Wharfedale Isodynamic, Philips Fidelio X2
    Headphone amp: Rotel RX-603

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