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Everything posted by Craig Sawyers
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Have a great one, Steve
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The Knuckledragger 3rd Memorial Slow Forum Post
Craig Sawyers replied to Knuckledragger's topic in Off Topic
^^And for the toughest foot race, possibly in the world, 135 miles from Death Valley to Mt Whitney http://www.badwater.com/event/badwater-135/ in midsummer. They wear white coveralls during the day, and run on the white line on the road to prevent their running shoes from melting on the blacktop. -
Robb Report: 6 best headphone amps
Craig Sawyers replied to Dusty Chalk's topic in Headphone Amplification
Wow you have a way with words - I can't stop laughing at that opening sentence; You've made my day -
Saw ACDC in late 1974 at Southampton University Student's Union. Which was the dining hall converted on a Saturday into a rock venue, with the band on a Dexion and floorboard stage we put up in half an hour. Hot, crowded and impossibly loud at a time when bands were seriously loud anyway. Way before anything remotely like a risk assessment, fire hazard issues, and busted eardrums.
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Have a great one, Ed!
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Robb Report: 6 best headphone amps
Craig Sawyers replied to Dusty Chalk's topic in Headphone Amplification
For out and out classic beauty the McIntosh takes a lot of beating -
The one L lama is a priest The two L llama is a beast And I would bet a silk pyjama you're never heard of a three L lllama
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Like the TV chef that I saw demonstrating how to do grilled cheese fast by putting the toaster horizontal, in his own home (Jamie Oliver). That produced smoke too by the bucketload, and made a hell of a mess of his toaster. So you're in good company!
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Jeez. What a way to go. Same thing happened to a guy whose music I used to listen to - Michael Hedges - in 1997. Car went off on road and down 120 feet into a ravine in Mendocino. Took them several days to find him.
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Very best wishes!
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B&O were always innovative, and produced great looking stuff that produced real sound quality. Back in the day (1972/3) I worked on a Saturday in an audio store in Newcastle (UK). The Beogram 4000 had just been introduced with a parallel tracking arm. Apart from zero tracking error, the customer benefit was its total immunity to mistracking as a result of shock. I used to demonstrate that by thumping the deck as hard as I could with my fist while a record was playing. It was one hell of a deck.
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Kind of difficult, since Evans has massive clout withe the BBC - and do or die he is the new face of TG. Will he last in the long term? No idea, but I'd guess he will be around for at least a year.
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If indeed they are dead (after you get them out) you need to find out what killed them. Post the schematic so we can have a look.
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If you are measuring out of circuit (so there is no confusion with any other parts on the board) then they are dead. Gate to drain or source is diode-like. Depending on the JFET, drain to source will be tens to hundreds of ohms either way around with the gate open. Possibly a turn-on transient while the tube warms up has killed them? Without seeing the schematic it is kind of difficult to tell for sure.
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Dunno if I posted this on the batteries. But when I built mine, I modelled the batteries in spice, with the following results: Batteries.pdf
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Thanks for that Graeme - I laughed so much it is incomprehensible that he has gone. From the date-stamp 6 years ago - so he must have been 71 then, and looked nothing like it. And multiple Bowie mentions too....
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The Knuckledragger 3rd Memorial Slow Forum Post
Craig Sawyers replied to Knuckledragger's topic in Off Topic
The pic of Concorde reminded me of a guy called Norman Harry. Norman is the (now very elderly) father of an old workmate of mine, Alan Harry. Alan had mentioned that his dad was a great mechanical engineer, and 20 years ago or so I had a problem that it seemed Norman might be able to help with. This dapper little guy showed up, quietly spoken. After a coffee we exchanged business cards, and his said "Norman Harry OBE" - OBE is Order of the British Empire, and is a top honour awarded by the government in the Queen's New Year honors list. And it is bestowed in person by the Queen. It is a big deal. "Good heavens, Norman - I didn't realise you had an OBE. What did you get that for?" "Um, I designed the droop nose on Concorde" Back about that time, Norman was one of a very few people qualified to pilot WW2 airplanes. In particular the Lancaster bomber. He was called on to restore the rear gun system for a French owned one, and to make sure he got it right he crawled into the gun blister of a complete one to take photographs and take measurements. "When I got in there I recognised the gun gimbals and mechanical system, and realised that I had designed it in the first place. The next thought was to see the imperfect design - that of a young guy - and immediately started to think how it ought to be done with the benefit of experience. Then I had to stop - the French wanted the historically correct one, along with all my design mistakes!" Quite a character. -
No-one in the US will likely have heard about this guy, but in the UK this is a major league loss - Terry Wogan http://www.bbc.co.uk/news/entertainment-arts-26957941
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The blizzard that hit you East Coast guys made it across the pond, warming as it came. So at 12C it is hitting us as torrential rain and high winds. Yummy.
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Fuses are fine for safety, but I usually find that the silicon blows before the fuse does.
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The Knuckledragger 3rd Memorial Slow Forum Post
Craig Sawyers replied to Knuckledragger's topic in Off Topic
^I made the awful mistake of pressing play -
For a completely different project I have a couple of Chinese ones, via eBay. Two secondaries are rated at 17.5VA each - so 35VA total. Looking at the product datasheet for Kitamura, the physical dimesions (including fixing hole spacing etc), the Chinese one correspinds to Kitamura's 25VA, so the 35VA chinese rating looks a bit hopeful.
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In a sense I'm kind of relieved that Minsky made it to 88; that is not a bad innings. Everyone else on the list in the last month hasn't made it out of their 50's or 60's.
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The Knuckledragger 3rd Memorial Slow Forum Post
Craig Sawyers replied to Knuckledragger's topic in Off Topic
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All the best, Adrian - have a great one!