Not really. Things don’t magically get better just because time has passed. Efficiency reaches a plateau, and the laws of thermodynamics prevent any further improvements.
Since it’s a battery operated device, they’re almost certainly using brushed motors. Those are less efficient than brushless, but brushed DC motors are cheap and easy to run from a DC source. The complex electronics to run brushless motors only got cheap in the last decade or so, and there’s still plenty of sex toy vibrators that use brushed because it’s easy and doesn’t take much space in the device.
The difference isn’t even that big. About 75-80% efficient for brushed, and 85-90% efficient for brushless. The extra complication of electronics isn’t always worthwhile even today. The basic mechanics of this stuff was invented over a century ago and was all but perfected decades before OP’s advertisement ever existed. It can’t be better than 100% efficiency, and it’s already pretty close to that. Unless someone comes up with a really clever design that gets brushless efficiency with little to no additional electronics, there’s not much improvement to be seen.
Batteries, OTOH, have improved by leaps since then.
Nah, things were much less energy efficient back then.
Not really. Things don’t magically get better just because time has passed. Efficiency reaches a plateau, and the laws of thermodynamics prevent any further improvements.
Since it’s a battery operated device, they’re almost certainly using brushed motors. Those are less efficient than brushless, but brushed DC motors are cheap and easy to run from a DC source. The complex electronics to run brushless motors only got cheap in the last decade or so, and there’s still plenty of sex toy vibrators that use brushed because it’s easy and doesn’t take much space in the device.
The difference isn’t even that big. About 75-80% efficient for brushed, and 85-90% efficient for brushless. The extra complication of electronics isn’t always worthwhile even today. The basic mechanics of this stuff was invented over a century ago and was all but perfected decades before OP’s advertisement ever existed. It can’t be better than 100% efficiency, and it’s already pretty close to that. Unless someone comes up with a really clever design that gets brushless efficiency with little to no additional electronics, there’s not much improvement to be seen.
Batteries, OTOH, have improved by leaps since then.
I actually wish more devices used C and D batteries as those last longer.
I especially hate when a device uses AAA batteries when AA would easily fit.
My stylus uses AAAA batteries which was the same exact sound I made when AAAs didn’t fit inside.
Also fun fact inside of a 9V is a bunch of AAAAs you can pop out because who the fuck keeps AAAAs on hand
Last few I’ve pulled apart contained a stack of 6 oblong, coin shaped batteries. Disappoint.
What?? I refuse to believe the blocky 9V is just a few AAAAs in a trenchcoat.
Well, it is. 6 cells of 1.5 V each, wired in series. That’s also why the 9 V block has both poles on the same side.
I always thought having both poles close by was to lick and get a little shock