Donation form Martin Hog

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Ciarán Eaton

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Jan 27, 2012, 4:20:49 PM1/27/12
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A Martin Hog turned up to the space just now with a donation of assorted electronics (http://img811.imageshack.us/img811/9302/img20120127205731.jpg). Needless to say, I told him that while the donation is appreciated we would prefer in future if we were told before hand to see if we actually wanted the stuff. The stuff was apparently going to be skipped so he didn't mind if that's what happens to it.

Also, he says he visited the space a year or so ago with a similar donation during which he accidentally left a box of "Flight Log Spools", so if anyone has seen them he'd be grateful if they were still about but understands that there's a very good chance they got skipped.

Adrian Godwin

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Jan 27, 2012, 5:32:02 PM1/27/12
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The stuff he brought last time was excellent. Which reminds me,are the
high voltage capacitors still around ? Quite a few uses for them in
high voltage power supplies and spot welding, which seems to be
interesting people at the moment.

I think I saw the box of flight log spools somewhere near the
stratasys not that long ago.

-adrian

Mark Steward

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Jan 27, 2012, 6:20:05 PM1/27/12
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As much to test as anything, because we're getting reports of errors posting now...

Tom would like to claim the dially thing in the photo.


Mark

Mark Steward

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Jan 27, 2012, 6:21:49 PM1/27/12
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And yes, it seems there are problems posting in the old Google Groups.  Please use the following address if you're not using email:



Mark

Sci

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Jan 27, 2012, 6:26:58 PM1/27/12
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Ooooh, thing with dials and meters! <3
My curiosity is piqued. :3

Particularly by the "synchros" box. I doubt it's gearbox synchomesh
parts, so anyone want to say what that actually means?

Also TNC connectors are the same sort widely used on WIFI antennas
aren't they? Since there's ham radio gear likely coming into the space,
would we be able to set up a mast on the roof? I'm imagining something
with neon letters down the side; "LHS - 2.4Ghz"

Monty

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Jan 27, 2012, 7:45:30 PM1/27/12
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That would explain why I wasn't able to create this topic through the
interface and was forced to send an actual email for a change. Thanks

On Jan 27, 11:21 pm, Mark Steward <markstew...@gmail.com> wrote:
> And yes, it seems there are problems posting in the old Google Groups.
>  Please use the following address if you're not using email:
>
>  http://groups.google.com/forum/#!forum/london-hack-space
>
> Mark
>

Nigel Worsley

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Jan 27, 2012, 7:48:44 PM1/27/12
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> Ooooh, thing with dials and meters! <3

And what looks like an expensive military style multipole bayonet connecter on it. I would be fairly surprised if one of the
boxes doesn't have the mating plugs in it somewhere.

> My curiosity is piqued. :3

Mine too, I have no idea what that box could be used for!



> Particularly by the "synchros" box. I doubt it's gearbox synchomesh
> parts, so anyone want to say what that actually means?

Yes, it will be these: http://en.wikipedia.org/wiki/Synchro

Connect two together and feed them with AC, any mechanical input on one is duplicated on the other, and vise versa - which means
that you get force feedback throught the link..Really cool stuff, a bit old fashioned but they still have many uses.

> Also TNC connectors are the same sort widely used on WIFI antennas aren't they?

No, those are usually a variety of SMA, TNCs are identical to BNCs except that the locking collar is screwed on instead of
a bayonet action.

> would we be able to set up a mast on the roof?

Not if the lanlords have any say in the matter :(

Nigle

Jasper Wallace

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Jan 27, 2012, 8:18:28 PM1/27/12
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On Sat, 28 Jan 2012, Nigel Worsley wrote:

> > Ooooh, thing with dials and meters! <3
>
> And what looks like an expensive military style multipole bayonet connecter on
> it. I would be fairly surprised if one of the
> boxes doesn't have the mating plugs in it somewhere.

yes, there are several milspec multipole connectors in the vairous boxes.

The big box with the dials is test kit for some Decca navigation kit

> > My curiosity is piqued. :3
>
> Mine too, I have no idea what that box could be used for!
>
> > Particularly by the "synchros" box. I doubt it's gearbox synchomesh
> > parts, so anyone want to say what that actually means?
>
> Yes, it will be these: http://en.wikipedia.org/wiki/Synchro
>
> Connect two together and feed them with AC, any mechanical input on one is
> duplicated on the other, and vise versa - which means
> that you get force feedback throught the link..Really cool stuff, a bit old
> fashioned but they still have many uses.

Most of the things in that box appear to be those, there are some things
labeled "servo" and some other oddoties, all are very well made.

> > Also TNC connectors are the same sort widely used on WIFI antennas aren't
> > they?
>
> No, those are usually a variety of SMA, TNCs are identical to BNCs except that
> the locking collar is screwed on instead of
> a bayonet action.

There are loads of nbc/coax bits in the boxes, of many different types.

--
[http://pointless.net/] [0x2ECA0975]

Charles Yarnold

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Jan 27, 2012, 8:31:09 PM1/27/12
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Maybe we need a hack-a-thon to sort out and tidy away the components from the original donation, anyone want to help?

Sol

Sci

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Jan 27, 2012, 8:42:17 PM1/27/12
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On 28/01/2012 00:48, Nigel Worsley wrote:
>> Ooooh, thing with dials and meters! <3
>
> And what looks like an expensive military style multipole bayonet
> connecter on it. I would be fairly surprised if one of the
> boxes doesn't have the mating plugs in it somewhere.
>
>> My curiosity is piqued. :3
>
> Mine too, I have no idea what that box could be used for!
>
>> Particularly by the "synchros" box. I doubt it's gearbox synchomesh
>> parts, so anyone want to say what that actually means?
>
> Yes, it will be these: http://en.wikipedia.org/wiki/Synchro
>
> Connect two together and feed them with AC, any mechanical input on one
> is duplicated on the other, and vise versa - which means
> that you get force feedback throught the link..Really cool stuff, a bit
> old fashioned but they still have many uses.

Very interesting. Certainly sounds like it's all radio & triangulation
related then?
Sounds like when sorting it should have some folk present with radio
experience so no gems get overlooked.

>> Also TNC connectors are the same sort widely used on WIFI antennas
>> aren't they?
>
> No, those are usually a variety of SMA, TNCs are identical to BNCs
> except that the locking collar is screwed on instead of
> a bayonet action.
>
>> would we be able to set up a mast on the roof?
>
> Not if the lanlords have any say in the matter :(

Maybe a tethered balloon? :/

Sci

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Jan 27, 2012, 8:45:47 PM1/27/12
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On 28/01/2012 01:18, Jasper Wallace wrote:
> On Sat, 28 Jan 2012, Nigel Worsley wrote:
>
>>> Ooooh, thing with dials and meters! <3
>>
>> And what looks like an expensive military style multipole bayonet connecter on
>> it. I would be fairly surprised if one of the
>> boxes doesn't have the mating plugs in it somewhere.
>
> yes, there are several milspec multipole connectors in the vairous boxes.
>
> The big box with the dials is test kit for some Decca navigation kit

And if we're not allowed an antenna, I'm guessing a full radome is out
of the question then? :(

Nigel Worsley

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Jan 27, 2012, 9:06:01 PM1/27/12
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>> <snip of synchro stuff>
> Very interesting. Certainly sounds like it's all radio & triangulation related then?

No, it was clear from Martin Hog's previous donation that his background was in aviation. The main use for synchros in that
field that I know of is for the artificial horizon, this needs gyros that are rather too bulky to integrate into the dashboard so
synchros are used to link them to the display section. They are probably used for the compass too, which I assume would be
mounted on the same platform as the gyros, this would also allow the compass to be shown on an almost vertical panel instead
of having to be horizontal.

This is all out of date in the digital generation, but many private aircraft are decades old and certification requrements can mean
that what we consider to be really cheap technology either isn't allowed to be used or has had a couple of noughts added to
the price.

Nigle

Sci

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Jan 27, 2012, 9:30:14 PM1/27/12
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Ah, understood. How small are these synchros then? I may pop in tomorrow
to have a gander and help sort if I'm qualified to. :)

Adrian Godwin

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Jan 28, 2012, 3:26:18 PM1/28/12
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On Sat, Jan 28, 2012 at 2:30 AM, Sci <s...@sci-fi-fox.com> wrote:
> On 28/01/2012 02:06, Nigel Worsley wrote:
>>
>> This is all out of date in the digital generation, but many private
>> aircraft are decades old and certification requrements can mean
>> that what we consider to be really cheap technology either isn't allowed
>> to be used or has had a couple of noughts added to the price.
>>
>> Nigle
>>

Out of date for aircraft it's true, but still very much in use in
other fields, as AC servo motors are essentially synchros with a
digitally-controlled power source instead of another synchro. So
they're quite nice as a demonstrator of how these things work, as
well as a neat historical background.

-adrian

Adrian Godwin

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Jan 28, 2012, 3:31:11 PM1/28/12
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On Sat, Jan 28, 2012 at 1:31 AM, Charles Yarnold
<charles...@gmail.com> wrote:
> Maybe we need a hack-a-thon to sort out and tidy away the components from
> the original donation, anyone want to help?
>
> Sol

Good idea, but in the meantime if anyone could empty a box onto a
table and take a snap of the contents it could show up some useful
bits.

-adrian

Steff

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Jan 28, 2012, 4:14:01 PM1/28/12
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On 27 January 2012 23:26, Sci <s...@sci-fi-fox.com> wrote:
>
> Ooooh, thing with dials and meters! <3
> My curiosity is piqued. :3

I believe it's the remote control for Jonty. We've been looking for that.

S

Adrian Godwin

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Jan 28, 2012, 6:25:22 PM1/28/12
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Wow thanks, nice.

All looks pretty good stuff and already well sorted. The only things
I'd think twice about are the plastic strapping and some of the
'unsorted cables'. The flat cables are probably obsolete as floppy
cables but still handy for random connections.

-adrian

Sci

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Jan 28, 2012, 8:56:23 PM1/28/12
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Weave the strapping into a seat of some sort? I dunno. But looks like
white vinyl. Someone may be able to use it.

http://img69.imageshack.us/img69/8620/dsc1576i.jpg
Some of these synchros are adorably tiny! If enough are compatible
pairs, maybe we could build a remote manipulator? Don't suppose any are
vacuum-rated? :P

http://img843.imageshack.us/img843/5918/img20120128215041.jpg
Those 5Watt heatsink resistors should mean we won't be short of extruder
heaters for a while, right?

Mark Steward

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Oct 25, 2019, 10:05:07 AM10/25/19
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The spools have been located. Does anyone have contact details for Martin Hog?


Mark
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