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Test Equipment / Re: Test Equipment Anonymous (TEA) group therapy thread
« Last post by K0ELB on Today at 02:14:00 am »
Just picked up this Tektronix 75A last week. Been wanting a combination variac and dim bulb tester but only found the 75B which goes for a quite a chunk of change. The 75A was a lot cheaper and seems to be pretty rare.
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we know most electronic waste has Precious metals requiring crushing and granulation for its extraction.
but is the individual components in e-waste worth salvaging?
I give for example any used solder on psb's.
or un-crushed ferrite cores hold any value worth recovering for reuse in the electronics second hand market? 
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General Technical Chat / Re: Baltimore Francis Scott Key Bridge collapse
« Last post by xrunner on Today at 02:06:26 am »
Oh yea Money Money Money (I'm humming the song from Dark Side of the Moon in my head at the moment). Of course we have lessons learned from the collapsed bridge, so they'll design the new one to withstand such a crash better. Maybe more lanes? How about restaurants and shopping areas at the entrances. The list goes on ...  :-DD
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Keep the ship for collateral - some 1851 law which was cited by the Titanic’s owner in a Supreme Court case 1912, could limit the payout. Titanic law could help ship owner limit liability in Baltimore bridge collapse

Estimates are $2B to repair/replace the bridge, $0.1B to free the ship and clean up the mess. Biden is talking like the Feds will give the money, but I have to ask why the US taxpayer is ultimately on the hook, as well as the many years of cranked up toll pricing we know will result. OUCH.

Recouping the costs from the “at fault” parties, will probably take a long time in courts, longer than if the US government financed the rebuilding from the start.

The US government can always recoup the costs later.
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4)  Amplitude stability to 0.5% is very important. It is entirely dependent on the +/- rail voltages so the need for input voltage regulation is critical.
That's true only of the square wave.
You might like to ponder what parts affect the sine wave amplitude precision.
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Keep the ship for collateral - some 1851 law which was cited by the Titanic’s owner in a Supreme Court case 1912, could limit the payout. Titanic law could help ship owner limit liability in Baltimore bridge collapse

Estimates are $2B to repair/replace the bridge, $0.1B to free the ship and clean up the mess. Biden is talking like the Feds will give the money, but I have to ask why the US taxpayer is ultimately on the hook, as well as the many years of cranked up toll pricing we know will result. OUCH.
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I'm not too much into vintage computing myself (I mean, in an active manner), but the last related thing I did a couple years ago was to revive a Sinclair QL, a modest, yet much rarer beast than any Macintosh.

Ahh, an 8 bit computer :-) :-)

Sort of... not. ;D
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Once enough debris has been manually cleared from the ship’s bow, the ship refloated and towed away, the remaining bridge span elements, both above and below water, will probably be broken down into smaller pieces by demolition explosives.

The bridge is way too big to cut apart with plasma torches or oxygen lances.

The ship itself is also probably destined for scrap metal yard.
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Another week gone by, still searching. :)
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