I used mine to clear the gravel out of a drain. It kept working for many years after, but with horrible grinding noises. I got another for the workshop.
Don't forget to change the RIFA capacitor every few years on your Henry.
They don't half sting if they go off and the air flow circulates the smoke fast.
My grandad used to sell these in the 60’s, luckily for me the man was a hoarder and had hundreds (if not thousands) of trade ins and even nib units stacked to the rafters in a 3 car garage and very large barn.
When I say luckily for me these vacs paid for my insurance and gas until I left home at 22. Everyone i knew (and everyone they knew) had one! I think I got between $20 and $40 depending on condition. My favorite was this style.
https://i.pinimg.com/originals/eb/2e/77/eb2e77ee09f4fa2509b44cec4d140395.jpg
I could not believe my eyes when I saw the amount of dust and dog hair that it picked up from recently vacuumed areas.
I am now a walking advert for the Dyson V10.
Okay, enough said. You guys don't really want to hear about vacuums anyway, unless of course were talking tubes.
Dyson are very good but at least in the UK are very expensive.
I was offered a job with Dyson about 20 years ago but refused it.
i.e. my last vacuum cost £30GBP and the Dyson was about £300.
For that price i would expect it to do the vacuuming itself.
Probably his next project.
I remember in about 2000 when they were developing it.
The motor controller was hooked up to a emulator.
They were struggling getting the control right and the emulator blew to smithereens.
A bit like my early SMPS adventures, hide behind a chair before turning it on.
Found and copied this:
What is Dyson digital motor?
The term "digital motor" appears to have been invented by Dyson for marketing purposes. The fundamental principal is the same as for all other electromagnetic motors. The specific type of motor used by Dyson has permanent magnets in the rotor and is called a brushless DC motor or a permanent-magnet synchronous motor.
What is Dyson digital motor?
The term "digital motor" appears to have been invented by Dyson for marketing purposes. The fundamental principal is the same as for all other electromagnetic motors. The specific type of motor used by Dyson has permanent magnets in the rotor and is called a brushless DC motor or a permanent-magnet synchronous motor.
The motor is controlled from a micro-controller with pulses hence the digital part.
In my basement shop I move cutters around with stepper motors using controllers and software. A stepping motor is a brushless DC motor, as is the Dyson motor, nothing digital about them.