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Craig Sawyers

High Rollers
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Everything posted by Craig Sawyers

  1. There are so many things to like about that sequence of images
  2. RIP Hunter, it is really tough having an old cat put down, or any pet for that matter. And condolences for the loss of your mother in law Todd.
  3. Well spoken Dusty!
  4. Left and right monoblocks are mirror images - that is a really nice touch. Hand cut dovetails are decent looking too.
  5. Here's the way we do replica Jaguars in the UK - https://www.buildingthelegend.co.uk/ "Although final cost will depend on each car’s ultimate specification, as little as £415,000 ..."
  6. Oh wow. I used to read that to our kids when they were little.
  7. Seems like a long time ago now. Currently mothballed at the Coventry Transport Museum while they try to raise the UKP8m to add the rockets and do the next series of runs to 800mph+. It all hangs in the balance. https://www.bloodhoundlsr.com/bloodhound-on-display-at-the-coventry-transport-museum/
  8. Welcome to the first mid life crisis Brent! There are more of them to look forward to down the line Hope you had a great birthday!!!
  9. RIP the 21 who died of hypothermia while competing in a 100km (60 miles) mountain marathon in China. 172 went missing and after a massive mountain rescue effort the majority were found and got off the hill. https://www.bbc.co.uk/news/world-asia-china-57216601 In the UK, a route like that has to have marshals at intervals, and you are required to carry weatherproofs, a route map and a compass.
  10. I remember the school physics book that talked about generating static electricity. "Rub an amber rod with cat fur..." I wondered whether this experiment had ever been tested by the writers of such books. Here kitty kitty kitty..
  11. Wooden, Krenov style scraper plane
  12. For some reason they remind me of the chair in The Sleeper
  13. Happy birthday!!
  14. 2,000 miles is a hell of a trip to storm the Capitol. And, as Voltron says - why Montana?
  15. Abbey Road studio 1, London in 1971. Tannoy Monitor loudspeakers (just noticed Quad 303 power amp underneath the LH speaker)
  16. Bogart in 1946. Cigarette in hand, the effect of which plus booze saw him off at age 57 And Hepburn in 1941 aged 34. She lived to the ripe old age of 96.
  17. Wonder why the Mitutoyo calipers are on the foot stool?
  18. Diana Rigg and Anthony Hopkins, taken when they were acting in MacBeth at the National Theatre in 1972. I'd walk over hot coals to turn back the clock and see what must have been a superb performance.
  19. A very happy birthday Shelly!
  20. The Canadians are at it too https://www.bbc.co.uk/news/world-us-canada-40124476
  21. It was not one of Quad's finest moments that is for sure. And on one channel only, an electrolytic is right above a power resistor, and cooks. So remedial action is to replace the two 3.3k resistors with something that can actually dissipate 0.35W, and space above the board anyway. And remove the dead electrolytics and mount replacements on the other side of the board away from the heat. Then remove the crowbars and fit a half way decent DC offset disconnect. Like this https://neurochrome.com/products/guardian-86 or this http://www.velleman.co.uk/contents/en-uk/p193_m4701a.html or this http://www.signaltransfer.freeuk.com/protect.htm just for starters.
  22. The rated power for a resistor is in free air. So to push 0.42W into an 0.5W rating, it absolutely needs to be spaced from the board to allow convective air flow. If tight to the board, there is a hot area where it contacts the board and long term will lead to resistor failure. In fairness, even Tektronix have been guilty of that, with the board discolored under some resistors. Quad was less successful in the 405 power amp, where a 3.3k resistor feeding a 15V zener in underrated. In due course it fails open, putting one output to rail. The ridiculous crowbar then fires and short circuits the output. The power transistors and drivers then instantly fry. Then the crowbar itself blows up. Then the fuses blow.
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