Search found 15750 matches

by Nick
Fri Apr 19, 2024 3:22 pm
Forum: News
Topic: RIP Atlas
Replies: 2
Views: 111

Re: RIP Atlas

Yep, but its replacement is something to behold.

by Nick
Fri Apr 19, 2024 1:31 pm
Forum: Everyones Projects
Topic: More NVA Board Based Stuff
Replies: 3
Views: 177

Re: More NVA Board Based Stuff

Yep, and also, the NVA amp seem to have a history of failing if you squint at them, and driving the output to one of the rails may count as that.
by Nick
Fri Apr 19, 2024 12:00 pm
Forum: Everyones Projects
Topic: More NVA Board Based Stuff
Replies: 3
Views: 177

Re: More NVA Board Based Stuff

Just pay attention to the voltage on the output of the buffer when turning stuff on.
by Nick
Thu Apr 18, 2024 2:21 pm
Forum: Everyones Projects
Topic: Mullard EL38 Triode connected.
Replies: 11
Views: 418

Re: Mullard EL38 Triode connected.

Well, the best PP valve amp I can remember hearing was Marks build of Lynns Aurora. But not sure I could justify the cost of the iron and valves.

Image
by Nick
Thu Apr 18, 2024 9:57 am
Forum: Everyones Projects
Topic: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.
Replies: 17
Views: 526

Re: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.

I said to Mike, “what is going to happen to our valves. (I meant will the go up i. Price of will they go down as the generation still interested die off. “ we are neare that day when we’ve ever been. Mike replied “we will run out of them”. Whats actually happened is as the price of valves have gone...
by Nick
Wed Apr 17, 2024 10:27 pm
Forum: Everyones Projects
Topic: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.
Replies: 17
Views: 526

Re: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.

But its better than knowing nothing. Is it though? I can see some merit for 2nd, but for 3rd and 4th, knowing nothing is to my mind, better than knowing something that is likely to be wrong, but not knowing if its wrong, and by how much. And of course thats before you ask if knowing 2nd-4th is enou...
by Nick
Wed Apr 17, 2024 10:16 pm
Forum: Everyones Projects
Topic: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.
Replies: 17
Views: 526

Re: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.

Not much detail, he doesn't derive the equations he uses. I would guess, its making a very big assumption about the curve between the 5 points he takes as the values that get plugged into the equations. But irrespective of the rigor of those equations, the fact that the small changes you made to the...
by Nick
Wed Apr 17, 2024 6:30 pm
Forum: Everyones Projects
Topic: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.
Replies: 17
Views: 526

Re: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.

So, and I say this gently. You have gone from: 1.3% 2nd, 0.32% 3rd and 0.22% 4th to 1.6% 2nd, 0.07% 3rd and 1.33% 4th Just by remeasuring the lines on the graph. Not sure I would trust any of that to be anywhere close to reality. Adding precision to a number doesn't make it any more accurate. From t...
by Nick
Wed Apr 17, 2024 3:11 pm
Forum: Everyones Projects
Topic: Mofo
Replies: 131
Views: 386426

Re: Mofo

Hmm, a lot of that added complexity would make me think that the original point of the MoFo was being lost. Also, the very different rise and fall time in that square wave display would worry me.
by Nick
Wed Apr 17, 2024 2:55 pm
Forum: Everyones Projects
Topic: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.
Replies: 17
Views: 526

Re: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.

I was thinking in particular where you have 69.65 (for example) that seems hugely precise from that printed page.
by Nick
Wed Apr 17, 2024 12:08 pm
Forum: Everyones Projects
Topic: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.
Replies: 17
Views: 526

Re: Distortion 2 to 3 W DHT,IDHT,Multigrid idht.

How much difference to the numbers do the width of the printed line make?
by Nick
Mon Apr 15, 2024 9:39 am
Forum: Everyones Projects
Topic: 45 SET
Replies: 155
Views: 33243

Re: 45 SET

Who can hear the difference between 2 watt and 1.44 watt, but maybe reducing 2nd from 7% to half is the biggest improvement you could make. Forget boutique components, this is measurable science. This is what the different loadlines look like. Getting better all the time. Biggest improvement you co...
by Nick
Sun Apr 14, 2024 10:43 pm
Forum: Everyones Projects
Topic: 45 SET
Replies: 155
Views: 33243

Re: 45 SET

Take psychoactive drugs:-)
by Nick
Sun Apr 14, 2024 10:19 pm
Forum: Everyones Projects
Topic: OK…so I’m on wi’ summat
Replies: 193
Views: 43884

Re: OK…so I’m on wi’ summat

Though as Steve knows the voltage is not regulated. But the difference between the two b+ will be. That I could argue is just as important.
by Nick
Sun Apr 14, 2024 10:14 pm
Forum: Everyones Projects
Topic: 45 SET
Replies: 155
Views: 33243

Re: 45 SET

May sound factious but describe what better is. Listen to all your music and decide what it can't do and why. Then fix that. If you can't answer that. Enjoy what you have.