Nothing In Particular

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pre65
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Re: Nothing In Particular

Post by pre65 » Thu Nov 07, 2019 7:56 pm

How long has the NEC been charging for parking ?

Last time I went parking was free (2-3 years ago) but tomorrow, for the Classic car show, it's £16 (£12 in advance) . :shock:
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Greg
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Re: Nothing In Particular

Post by Greg » Thu Nov 07, 2019 9:29 pm

A long time. Getting out of touch, old timer, G-Popz. :D

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IslandPink
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Re: Nothing In Particular

Post by IslandPink » Thu Nov 07, 2019 10:25 pm

I must be getting old too ! Must be 10 years since I was last there.
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

steve s
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Re: Nothing In Particular

Post by steve s » Thu Nov 07, 2019 11:04 pm

I went to the motorhome show a few weeks ago and it was free parking?
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Mike H
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Re: Nothing In Particular

Post by Mike H » Fri Nov 08, 2019 5:58 pm

Maybe they thought there wouldn't be as many of you? :lol:
 
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pre65
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Re: Nothing In Particular

Post by pre65 » Fri Nov 08, 2019 8:04 pm

A good day out was had, highlight of the day was seeing two Gordon Keebles.

As to the parking, it WAS £16 to get out of the car park.
Life is what happens to you while you're busy making other plans. John Lennon

G-Popz THE easy listening connoisseur. (Philip)

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Mike H
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Re: Nothing In Particular

Post by Mike H » Fri Nov 08, 2019 8:57 pm

Had to look up Gordon Keeble. Good lord! :shock: Sorry never heard of 'im
 
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pre65
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Re: Nothing In Particular

Post by pre65 » Fri Nov 08, 2019 9:34 pm

British craftsmanship with American muscle. :D

https://en.wikipedia.org/wiki/Gordon-Keeble
Life is what happens to you while you're busy making other plans. John Lennon

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Mike H
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Re: Nothing In Particular

Post by Mike H » Sat Nov 09, 2019 12:57 pm

Fairy nuff! :D
 
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Mike H
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Re: Nothing In Particular

Post by Mike H » Sat Nov 09, 2019 1:00 pm

A question for the knowledgeable

I'm having a senior moment, does the quiescent current (i.e. what you've set it at) of a power MOSFET decrease when it heats up?

I.e., opposite behaviour of a bipolar ...
 
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Nick
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Re: Nothing In Particular

Post by Nick » Sat Nov 09, 2019 2:35 pm

No. Laterals tend to be stable with temp, but most other sorts of mosfet need temperature compensating if you want a constant current.
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ed
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Re: Nothing In Particular

Post by ed » Sat Nov 09, 2019 3:14 pm

all mosfet and latfet datasheet will show the temp coeff graph. As Nick says latfets don't suffer variation like hexfets.

This is why it's wise to let mosfet amps settle for a good while before setting bias and offset if PP. This is particularly important if running high current bias with heatsinks.

to answer your question I believe current can vary up or down depending on temp and/or device....I think check the graph if you need to be precise.
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Mike H
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Re: Nothing In Particular

Post by Mike H » Sat Nov 09, 2019 4:24 pm

So what Nick said, "no". :lol:

OK ta chasps ...
 
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IslandPink
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Re: Nothing In Particular

Post by IslandPink » Sat Nov 09, 2019 4:56 pm

Winter has started here -
09Nov19_ii.JPG
09Nov19_iv.JPG
"The bass is the king of the instruments - it has no known natural predator" (Wobble)

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Ray P
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Re: Nothing In Particular

Post by Ray P » Sat Nov 09, 2019 5:32 pm

IslandPink wrote:
Sat Nov 09, 2019 4:56 pm
Winter has started here -
Not been out on the bike then!

We didn't see any of the heavy snow the Met Office forecast mentioned for us - still bloomin' cold though!

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