On Sat, 30 Mar 2019 14:14:03 GMT, MaTT
m wrote:

replying to Wood Butcher, MaTT wrote:
Hi Is it possible that the auction is fine overall. Depending on needs at
hand it can be diverse to have variable suction. Being able to add a silencer
to the vacuum may be the next move?


MOST vacuums are dc brush type motors so a "dimmer switch" would
control the speed - but you would need a "heavy duty" one because MOST
are only good for 600 watts, and the vacuum power does not decrease
linearly with speed (or sound output). In other words the vac will
suck a lot less for a smaller decrease in noise output.