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Test Equipment Anonymous (TEA) group therapy thread

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bd139:

--- Quote from: med6753 on July 13, 2022, 09:38:08 am ---
--- Quote from: mnementh on July 12, 2022, 07:51:40 pm ---
--- Quote from: bd139 on July 12, 2022, 05:25:45 pm ---
--- Quote from: med6753 on July 12, 2022, 05:24:01 pm ---
--- Quote from: bd139 on July 12, 2022, 05:21:58 pm ---I wouldn’t worry about precision there. They are usually specified to -20% +100%. A 5600uF is fine for the 5000uF

--- End quote ---

Of course and I realize that. But anal me insists we be as close as possible.  |O :P :-DD

--- End quote ---

Been there. I’ve untrained myself from that way as it was getting expensive  :-DD
--- End quote ---

Meh. I'd have slapped a couple 2700uF on there so I could keep the leads through-the-PCB short, which is kindof the point of that adapter and all the different hole patterns it supports. Leaving those leads long like that fucks the ESR of the cap right to hell. :-//

mnem
*unplucked*

--- End quote ---

I disagree. Given that the modern replacements have lower ESR than the originals I see zero net impact.

--- End quote ---

Yep. ESR on them isn’t that important. They’re just there to stop the regulators dropping out at 100/120Hz. Anything which requires lumps of current is well decoupled with tants. Now if you replace the tants that’s a different thing. 2x the value low ESR electrolytics are fine there. But main supply caps, any old shit will do.

mnementh:

--- Quote from: bd139 on July 13, 2022, 08:06:59 am ---Yep. Rocking the 0.99L 3 cyl here  :-DD

Sounds like a V8 if you stick kangaroo juice in it.
--- End quote ---

I think you've been drinking too much of the kangaroo juice. Nothing sound like a V-8 except a V-8. ;)

I have no problem with folks keeping the heavy metal of yesteryear alive... I'll always be a motorhead, and there still is no replacement for displacement. But this is a different world; these toys of yesteryear have to be treated as toys, not as a way of life if we are to survive as a species. We cannot afford for those lovely beasts to be anybody's "daily driver" any longer.

mnem

mnementh:

--- Quote from: Specmaster on July 13, 2022, 07:45:24 am ---
--- Quote from: Cerebus on July 13, 2022, 12:32:08 am ---
--- Quote from: mansaxel on July 12, 2022, 10:03:06 pm ---
--- Quote from: TERRA Operative on July 12, 2022, 03:45:48 pm ---
But, nothing beats the sound of a supercharger. :D

--- End quote ---

The current tractor has a 5cyl TDi engine, and the turbo whine when it starts to make more power at a steady rpm (cruise control, meet uphill) is very, very addictive.

--- End quote ---

The Bimmer has a turbo but you wouldn't know it from the noise - there isn't any. In fact there's precious little engine noise at all, anything short of full throttle and all you hear is a gentle rumble from the tyres and suspension. All very civilised. Oddly I appreciate the quiet, despite spending the last 22 years driving a mid-engined car with the intakes and valve gear separated from my head by 10 inches and one thin steel engine access cover that with some carpet on it is basically the parcel shelf inside the cabin.

I am not a fan of turbo fitted engines in general, I've driven quite a few over the years and the laggy throttle response at low RPMs makes me very uncomfortable - if I'm going to have intake boosting give me a supercharger any day. Thankfully there's some clever cooperation goes on between the electric and petrol engines in the Bimmer with the electric motor filling in any gaps left by the turbo, and the only time you notice any turbo lag is on standing starts with hard acceleration. If I'd know it had a turbo before I'd driven it I'd have probably given it a miss based on past experience.

--- End quote ---
Hmm, that's odd, because my car also has a turbo and I can honestly say that I have not noticed any lag in it cutting in at all.
--- End quote ---

Yes, well... we all know that most of your driving experience is in land yachts stuffed to the gunwales with commuters and grammas lugging groceries. We wouldn't expect you to notice the difference. ;)

mnem

AVGresponding:

--- Quote from: mnementh on July 13, 2022, 11:32:22 am ---
--- Quote from: bd139 on July 13, 2022, 08:06:59 am ---Yep. Rocking the 0.99L 3 cyl here  :-DD

Sounds like a V8 if you stick kangaroo juice in it.
--- End quote ---

I think you've been drinking too much of the kangaroo juice. Nothing sound like a V-8 except a V-8. ;)

I have no problem with folks keeping the heavy metal of yesteryear alive... I'll always be a motorhead, and there still is no replacement for displacement. But this is a different world; these toys of yesteryear have to be treated as toys, not as a way of life if we are to survive as a species. We cannot afford for those lovely beasts to be anybody's "daily driver" any longer.

mnem


--- End quote ---

Aaaaand this has always been utter nonsense. This is why Colin Chapman's designs blew all the primitive displacement based ones into the weeds.

The only thing adding displacement is good for is going fast in a straight line. For anything else, weight reduction is the real answer. Hence how Mini Coopers could beat 7-litre+ yank tanks in the early days of touring cars.

AVGresponding:
I keep getting distracted... I only really logged on to post that the seller of the bench grinder (assetclear) issued a pretty much instant full refund and apology without ebay getting involved.

I also get to keep the grinder, though it'll for sure not be getting used as such, at least on the right hand stub. Maybe a polishing wheel on that side, and maybe I can find a decent stone for the left hand stub, which does run true but the stones that came with are both warped.

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