Search found 3414 matches

by shane
Wed May 22, 2024 7:40 pm
Forum: Assorted Stuff
Topic: Zero emission road vehicles.
Replies: 923
Views: 428515

Re: Zero emission road vehicles.

I don’t see the problem with electric cars. I have two, a Jaguar and a Porsche, and I think they’re fantastic. They look brilliant, they cost nothing to run and their performance is simply breathtaking. My only problem with them is if I push them a bit too hard into a bend they tend to fly off the t...
by shane
Mon May 20, 2024 8:29 pm
Forum: News
Topic: Frank Ifield. I remember you ?
Replies: 3
Views: 311

Re: Frank Ifield. I remember you ?

I remember him.
by shane
Sat May 18, 2024 9:26 pm
Forum: General Vinyl
Topic: 60Hz oscillator for turntables (also produces three phase)
Replies: 17
Views: 722

Re: 60Hz oscillator for turntables (also produces three phase)

Now that could be really useful. Thanks Morgan!
by shane
Thu May 16, 2024 10:11 pm
Forum: Everyones Projects
Topic: Another "Not about HiFi" project... (but about sound)
Replies: 18
Views: 13567

Re: Another "Not about HiFi" project... (but about sound)

Lots of bats around tonight…
by shane
Mon May 13, 2024 9:16 pm
Forum: Speakers
Topic: TG "The Loudspeaker" Build (Sort of)
Replies: 173
Views: 17609

Re: TG "The Loudspeaker" Build (Sort of)

Very thought-provoking. I just found this which may be of interest:
https://hackaday.com/2019/06/01/experim ... y-granite/
by shane
Wed May 01, 2024 10:05 pm
Forum: New Users
Topic: Hi from Germany!
Replies: 23
Views: 1907

Re: Hi from Germany!

So the original Connoisseur motor had a little bracket across the bottom of the motor with a central screw and thrust bearing that allowed rotor height to be adjusted for minimum vibration. When we designed the TT2, which used the Airpax/Premotec motor, we found that putting a nylon cap on the bott...
by shane
Tue Apr 30, 2024 6:15 pm
Forum: New Users
Topic: Hi from Germany!
Replies: 23
Views: 1907

Re: Hi from Germany!

Can I ask what motor you’ll be using?
by shane
Tue Apr 30, 2024 4:09 pm
Forum: New Users
Topic: Hi from Germany!
Replies: 23
Views: 1907

Re: Hi from Germany!

That may be true for some value of "belt drive platters" Hence why I said more or less. Yes, but the effect of the "big fast rotor" is also stepped down by the reduction ratio of the motor to platter. Surely it’s stepped up, in the same way that a car in 1st gear has far more en...
by shane
Tue Apr 30, 2024 1:35 pm
Forum: New Users
Topic: Hi from Germany!
Replies: 23
Views: 1907

Re: Hi from Germany!

I guess it’s the sum of the parts. Idler platters are more or less similar to belt drive platters, but the flywheel effect of a big fast rotor is enormous compared to that of a small synchronous motor, which is also decoupled by a belt.
by shane
Tue Apr 30, 2024 11:59 am
Forum: New Users
Topic: Hi from Germany!
Replies: 23
Views: 1907

Re: Hi from Germany!

The flywheel effect of the motor was the main reason why I was thinking about idler drive. I think that is to a large extent what gives the Garrard and Lencos of this world their dynamics. I’ll have a look at the Altmann though. Not come across that one before.
by shane
Mon Apr 29, 2024 10:31 pm
Forum: New Users
Topic: Hi from Germany!
Replies: 23
Views: 1907

Re: Hi from Germany!

I’ve had some turntable ideas in the back of my mind for years, mostly involving brushless motors but the electronics are a bit of a mystery to me. Where’s the best place to learn? I’m thinking more of an idler design so speeds will be a bit higher than most belt drives.
by shane
Wed Apr 17, 2024 4:34 pm
Forum: Jokes
Topic: A little light humour
Replies: 2729
Views: 1242920

Re: A little light humour

Just plug the vacuum cleaner of your choice into the mains socket.
by shane
Sat Apr 13, 2024 11:27 am
Forum: Your Fave Artists
Topic: What Are You Listening To Right This Minute?
Replies: 6181
Views: 1958354

Re: What Are You Listening To Right This Minute?

Blue Nile - Hats. Due to circumstances beyond my control most of my listening these days is via streaming on headphones, so last year I bought a pair of Sennheiser ie300 IEMs to at least try to make the best of the situation, and jolly good they are too. Today for the first time I’m listening to my ...
by shane
Wed Mar 27, 2024 7:34 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16521
Views: 4910952

Re: Nothing In Particular

Nasty situation, Phil. Hope all turns out well.
by shane
Fri Mar 22, 2024 2:46 pm
Forum: Assorted Stuff
Topic: what are you doing ?
Replies: 1308
Views: 486689

Re: what are you doing ?

if you try to play back recordings, are they easily audible? With the mic I used (which has now packed up) they were recorded at such a low level they were virtually inaudible, although it seemed to be able to make identifications ok. I was using one of these with the same Ugreen sound card: https:/...