3 hours ago, nta16 said:

Purely as a non-scientific test yesterday I drove my wife's car to test the revs required to pull off.

 

Just the idle speed revs is all that is required.

You use the automatic anti stall engine rev rise to your advantage and then you will have no stutters.

This will also make your clutch last longer. 

 

Thanks, AG Falco

Decades of getting used to various settings of chokes, pull, twist, lock, listen look.  And for a good while now also tapping the tacho glass with a finger knuckle to match needle number with perceived sounds as the exhaust and engine are different when near the building wall or facing out to the road (to allow moss and rust equal adhesion to both sides of the vehicle).

 

It takes a while for the my onboard computer to work out fuel type, mixture, idle speed to match pedal movements, more so when the computer is cold and running even slower than normal.  Updates are very infrequent.

 

Edited 13 August, 20214 yr by nta16
change 'the' to 'my'

34 minutes ago, nta16 said:

 

It takes a while for the onboard computer to work out fuel type, mixture, idle speed to match pedal movements, more so when the computer is cold and running even slower than normal. 

 

 

Yup those pesky thermionic valves take a while to warm up.

 

 

What BS

Oh, no, I don't think anything in my computer gets anywhere near as warm as those.

 

Sorry I didn't make myself clear I was referring to the computer onboard my 1973 car that also onboards the 2015 Fabia, the very neglected one, the 'nut' behind the steering wheel, or on a passenger seat.

 

I thought you were adding to the theme until I scrolled and saw - What BS - that made me laugh.  Sorry I mislead you.

 

I love the image, I had an old valve radio, wood case and elliptical speaker, one time they sold CD players and solid state amps with valves in them too, no BS. 

 

Sad, all these Americanisms now used, used to be 'what *******s' or 'talking *******s' and people asking for "the bathroom" when they want the toilet  . . . ah, the wonders of language, its use, and misuse.  

 

Edited 13 August, 20214 yr by nta16

I don't know what the actual size of these valves were in that picture, but once at work, a "very generous" environmental department loaned a contract that I was supporting a big Pye-Ling electrodynamic shaker kit, to get a new project moving before they sourced/funded their own new shaker kit, the valves in that very old, at that time Pye-Ling power amplifier which was probably round about 3.0kwatt, looked to be very big to me and very noisy and dangerous - though I was quite pleased when the "generous" lender had assured me that everything had been "gone over and refurbished", to find that by the start of play the next day, the shaker cooling fan had failed and "sorted out" the shaker head windings!

The next stop for that kit would have been the scappy, my lucky break, I checked the carbon brushes on that cooling fan motor and found that they were basically gone, expired, worn down to next to nothing.

The next generation of big power amps had what was called "trombones" of discrete transistor pairs - all water cooled, easier to work on when things failed, which they usually did, so 2 "pull" and 2 "push" arms handing over 6kwatts up to 2000Hz - and then it went to fast switching devices for the next generation.

Other than Pye, kW and being told something was checked when it wasn't all else was well beyond me. 

 

I'm much more at the level of that image looking like a shot from a sci-fi film, the top left corner looking like  some sort of raised platform with a man standing behind a lectern (depends on your image size) - and this all without the benefit of drinks. 

 

@rum4mo looks like your shaker "big power amps" volume goes to 11 - maybe a bit less on the Richter scale.

 

Interesting stuff:

 

https://hbkworld.com/app/uploads/2019/09/Vibration-Testing-for-Wide-Ranging-Applications.pdf

 

56 minutes ago, johnh510 said:

@rum4mo looks like your shaker "big power amps" volume goes to 11 - maybe a bit less on the Richter scale.

 

Interesting stuff:

 

https://hbkworld.com/app/uploads/2019/09/Vibration-Testing-for-Wide-Ranging-Applications.pdf

 

 

Ah, B&K, or now HBK, lots of their "bits" came in very well made wooden boxes, we changed to Endevco for some reason, maybe cost, another good company that ended up in Meggitt.

 

Edit:- LDS, yes a good designer of shaker systems, LE, the American version was nice and cheap and suited production budgets.

 

Another Edit:- ah, reading that takes me back a few years, all good fun though, along with temperature chambers, lovely stuff!

Edited 13 August, 20214 yr by rum4mo

So it's nothing to do with a Motorhead concert then, it's all bowel loosening and not tinnitus and nose-bleeds..  

 

Ya know, I'm gunna get the blame for all this thread drift.  

 

 

Edited 13 August, 20214 yr by nta16