The shit that doesn't merit its own thread (the resurrection)

I know you’re enjoying moonlighting for the Dove advertising company, but you shouldn’t drop such obvious hints into every conversation, dude

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http://watch-truck.com/photo-video-was-too-deep-but-we-proved-them-wrong-we-have-got-the-baddest-bunch-around-is-in-vidor-texas/

:flushed:

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Turns out that Claire had turned the heading on incorrectly, so it was still 20 degrees at 1am. Which woke me up, and I stayed awake for hours.

Well I’m surprised at that

Very crude sum (scaling from the drawing here https://www.ortofon.com/support/support-hifi/cartridges-dimensions-chart yes, I know I shouldn’t do that)

Cartridge pin length 0.0035m
Cartridge pin diameter 0.0013m
So cartridge pin surface area 0.000014m^2 (pi x diameter x length)
Cartridge pin spacing 0.004m
Resistivity of fresh water 10 ohm-m (https://www.eoas.ubc.ca/ubcgif/iag/foundations/properties/resistivity.htm - resistivity is the inverse of conductivity)

Resistance = Resistivity x pin spacing / pin surface area (assuming uniform field - actually the field concentration near the curved surfaces raises the resistance but the stray field outside the nominal inter-electrode volume counteracts that and I’ve just assumed these affects null one another out)

The result is 10 x 0.004/0.000014 ohms which comes to a little under 3kohm. That would load an MM cartridge, which expects to see 47kohm, quite significantly. But MC cartridges should drive 3kohm without really noticing.

Tragically in a previous life I spent some of my time calculating electric field distributions between metal electrodes in a mixed water/insulator environment. So I just happen to know about this.

VB

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Thanks for that but tragically in any life I can’t do maths like that.

Seriously though you seem to be saying that a cartridge can be almost submerged in water and still work? I’m in no way doubting you I’m just very surprised. As a layperson in things electric my understanding is that water and electrickery don’t mix well.

The real thing is better

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Electrically the cartridge would work, then, but would there be a big change in compliance from being within water rather than air?

My guess is that the movements are so small that there might not, but would it attenuate high frequencies somewhat? I’m desperately hoping that it would replicate the RIAA curve…

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Fucking hippies…

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That’s Numberwang!!

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Job has now gone full-on Lord of the Flies.

Proxy wars being conducted via the codebase with loon a deleting loon b’s code, which inevitably prompts a retaliatory strike at loon a’s code.

You really couldn’t make this shit up.

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I sympathise, and in general that’s right. But sometimes the only way you can get your electrical machine to work is to use water. I used to design, build and operate kit a bit like this https://www.youtube.com/watch?v=eaopaLJk3-Y http://www.sandia.gov/Pulsed-Power/res-areas/_assets/SandiaResearchVol2_Iss2.pdf (our kit was smaller, but not a great deal smaller). If you ever need convincing that water can be a part of a functioning electrical machine then see if you can get them to let you into the building when the Z machine or Hermes III is fired. It’s not something you forget in a hurry.

VB

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^^^ Seems a bit elaborate. Could you not just have wired Vanessa in to whatever that thing is, before you fettled the dirty girl?

A lot of hassle just for a bit of extra damping :smile:

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:grin:

My inner spelling Nazi approves…

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:see_no_evil::see_no_evil::see_no_evil:

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What the fuck sake?

26 million amps!!!

I’ll bet @coco had a hand in designing the PSU

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