Search found 5496 matches

by jack
Thu Jun 07, 2012 5:05 pm
Forum: Assorted Stuff
Topic: What do we want from a system?
Replies: 51
Views: 20834

And why does anyone do anything as a hobby. I think these ponderables are linked by one word. Escapism. I build things for pleasure, i listen for pleasure and i have a drink for err pleasure. I can forget about the procarious euro, the question on malvinas ( bollocks) sovereignty and wether the loc...
by jack
Wed Jun 06, 2012 9:40 pm
Forum: Assorted Stuff
Topic: Elephant Hawk Moth
Replies: 45
Views: 22125

Dave the bass wrote:OOo....Ooooo! I forgot a couple of 'Science Celebs' I work for... these 2 Nobel prize winners.
Forget "Celebs" - these two are scientific royalty...
by jack
Wed Jun 06, 2012 12:34 pm
Forum: Assorted Stuff
Topic: Elephant Hawk Moth
Replies: 45
Views: 22125

...Alex Harvey pissing on my shoe in the urinals ... On the "celebrity slash" topic, I once was at a "Gentleman's Rugby Evening" and used the urinal adjacent to a totally hammered Phil Vickery - he's huge (as in bulky, and no, I didn't look) - blocked out the light he did. On an...
by jack
Wed Jun 06, 2012 11:08 am
Forum: Assorted Stuff
Topic: Elephant Hawk Moth
Replies: 45
Views: 22125

As a small child, I once had supper with Milton Obote (not Milton Jones). Does that count?

Oh, and the Queen scowled at me after I nearly got run over by her car (I was daydreaming as I was crossing a road in the West End).
by jack
Tue Jun 05, 2012 10:22 am
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16489
Views: 4844842

The bit alone (the solenoid valve) costs nearly £260 - sigh - :shock: - can't find one ex-write-off/breakers atm...
by jack
Tue Jun 05, 2012 8:10 am
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16489
Views: 4844842

See if you can check the condition of the diaphram on the actuator itsself as if the solenoid is working but the diaphram is perished the ecu could be getting a reading from the airflow meter telling it that the actuator hasnt done as its told. I spent days chasing a similar problem ony friends vec...
by jack
Mon Jun 04, 2012 4:04 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16489
Views: 4844842

I had a Saab 900 turbo many years ago Blimey. Had a Saab too - a 9000SE turbo, old "E" reg (1988) - when I eventually sold it, I got barely the cost of the recently fitted refurbished auto box. Lovely comfy cars, but an expensive thing to run... ...anyway jobs continue - built a new beehi...
by jack
Mon Jun 04, 2012 2:22 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16489
Views: 4844842

I remembered that I had the Haynes manual for this thing - got it a while ago to replace one of the rear lamp clusters - total cost under 50 quid using a spare from a breakers yard when the Volvo dealer wanted £240 - mind you, it was bloody fiddly and took an afternoon... Anyway, looking at page 4B....
by jack
Mon Jun 04, 2012 12:45 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16489
Views: 4844842

Anyone know about analysing ODB2 diagnostics? Got an annoying Volvo with an annoying warning light that shouldn't be on (apparently) and is annoying... What Volvo and which light ? Fellow Volvo owner. :wink: It's a V70 '05 reg - when you turn on the ignition you get a warning message saying "E...
by jack
Mon Jun 04, 2012 12:09 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16489
Views: 4844842

Anyone know about analysing ODB2 diagnostics?

Got an annoying Volvo with an annoying warning light that shouldn't be on (apparently) and is annoying...
by jack
Mon Jun 04, 2012 10:36 am
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16489
Views: 4844842

Neal wrote:The ruddy weather is awful :(
Supposed to do a boot fair stall today at local cricket club.

Found our ground sheet in a neighbour's field

3 cheers for the weather! :(

Edit: Now got permission to do "stuff" in workshop. Result. :D
by jack
Fri Jun 01, 2012 1:39 pm
Forum: Assorted Stuff
Topic: Cable
Replies: 10
Views: 5106

If you only want a small length, I have a some RG316U - you'd need two lengths, and it may be overkill (rather exotic stuff) but it does look nice...
by jack
Fri Jun 01, 2012 7:26 am
Forum: Assorted Stuff
Topic: Winter in the workshop...
Replies: 7
Views: 4732

And the fault was - or didn't he say? he did - I can't remember exactly but there were a couple of pots that needed adjusting - just outside of limits apparently - I can find out what they were should you wish, and the usual self-cal issues (which I have done myself before and on the 2430A are not ...
by jack
Wed May 30, 2012 10:29 pm
Forum: Assorted Stuff
Topic: Amplifier Measurements
Replies: 18
Views: 7143

Opamps 3db bandwidth is normally quoted as a GBW(P) i.e. gain bandwidth product. e.g. for an opamp with a GBWP of 1Mhz and a gain set to x10, the bandwidth will actually only be 100khz, hence the need for open loop GBWPs in the Mhz range even for audio use - even the humble TL07x series quote unity ...
by jack
Wed May 30, 2012 4:54 pm
Forum: Assorted Stuff
Topic: Amplifier Measurements
Replies: 18
Views: 7143

Bin 0 of the FFT (DFT variant) is normally the DC component (leftmost pixel column) - it depends on how you are displaying it. The fundamental is normally the next peak and so on, though with a granularity of 5dB div its difficult to tell. The y axis should be 125hz/div which makes the test frequenc...