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Recent content by martin clark

  1. martin clark

    Diet ideas - what actually works?

    I might have written about this in a previous thread - but after a personal rate of inflation of 1-2lb/yr since mid 30s, I took stock of what I hated about WFH through the lockdowns - which really locked-in such damage - and did really two, really-simply things: First - ASAP, work out of my...
  2. martin clark

    Any love for MX5’s?

    If I had one, and wanted 'more' - that's the kind of route I'd go. You'll work harder, to find the opportunities, and to exploit the engine's top-end revs, and - that is my predilection, by far. Always has been - it's all about Engagement - not, 'Speed', not 'Fast' - more about fizzy fun. But...
  3. martin clark

    Any love for MX5’s?

    Yes - but a MX5 is going to be fun at any speed ( a demented* one, maybe not-so) - whereas any Boxster doesn't really get into the 'fun zone' until way past practical speed limits (traffic, as much as, legal). The MX5 joy comes from a light car, that is fun from deliberately-being a hair...
  4. martin clark

    FM aerials. Talk to me

    @davidsrsb - thanks for the correction!
  5. martin clark

    Building Q

    Might well be, and that would be my recommended approach - talk to whoever you used for founds & sim, for this last recent work.
  6. martin clark

    A light-hearted what would you change if you could thread

    Oh,n England, we tried that partially - 1653-1659ish.. really, really didn't turn out well.
  7. martin clark

    FM aerials. Talk to me

    ..only if you can point it, in the right direction. Me, I built a 'cubical quad' - actually a single turn of 3.2m of 2mm copper wire, 800mm /side. It hides in plain-sight on the front edge of the shelves in one of the book cupboards - and since that's within 5degrees of on-axis from local...
  8. martin clark

    Building Q

    .. just close-up the centres of the joists under the bath to maybe 300mm, if worried - but even as originally suggested, it'll be fine. UK typical domestic floor live loads allowances are 1.5Kn/sq.m; a bath, silly-full, is going to be under 300Kg, floor deck spreads that over >2sq.m anyway = no...
  9. martin clark

    The best audio system on earth?

    I really don't understand what you mean. Sadly, I don't think you do , either.
  10. martin clark

    Pushing the OPA604

    .. I've not knowledge or real interest in this amp design, but - as with most others: a dab of C-R-C as front -end filtering for that opamp with R of 10-50 ohms, as you determine required; /and/ maybe a zener to 0v after that R, (in this case, say 22v nom) to limit peak exposure to c 22-24v...
  11. martin clark

    "Filament" type LED bulbs fail much more than the other kind (?).

    au Crepescule - much better adjective, in long use. French yes, but crepuscular, is valid English, covers a wide range of sim. ;)
  12. martin clark

    Pushing the OPA604

    Easy answer - add a diode in series, maybe two , with each supply; knock 24.5 down to maybe 23.7, 23ish, follow with decoupling cap to 0V - which will reduce output-stage ripple effect on the opamp PSRR. Double-win :) Any given example of [opamp] might well stand +10% on supply - I've gone...
  13. martin clark

    System pictures from 20 years ago....

    Fully 15yrs ago next week ... two idiots (-well: I account myself as such; but in company of my unfairly-maligned friend @MarkW ) messing-about with a pair of 50mm Bandor drivers, much spare foamboard, and beer: Horn-loaded sink-plungers: (yes, a stereo pair of such) - I seem to remember...
  14. martin clark

    PFM's Picture a Week 2024

    ..Should have kept the H2s ;)
  15. martin clark

    The best audio system on earth?

    'hypothesis' == 'conjecture.' Equivalent terms, different language-base by about 1500yrs, is all. Do you also shout at clouds?


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