Recent content by Specul8tr

Stu, try a hammer. That’ll do the trick Stephen

As clear and concise as ever Martin. Many thanks

Hi Stu, Can you detail the LM317 led mod for me please? I get the idea but I’ve not come across this one before. Cheers mate, Stephen

BobMaximus, I was referring to the 2 resistor scenario. The point of the cap is to short anything that is not DC (ie. AC) to ground and so making this midpoint the entry point for your signal (AC) intrinsically means this signal also gets shorted to ground, making this a perfect scenario for...

I’m glad you mentioned that. Ordinarily I’ve seen the cap returned to 0v and the bootstrap idea mentioned in Walt Jung’s paper is one worth exploring further, but a potential pitfall avoided there.

Martin to the rescue... That does make much more sense. So this only works when we are dealing with a current source and of course the usual 1/2piRC equation applies. Simple. Thanks guys.

Thanks for your reply. What I meant was, why is RCR better than RC? Why the use of a second resistor which surely adds more Johnson noise into the circuit. Why not just use RC?

Many references are made to splitting a resistor with a cap to 0v to obtain a degree of filtering. I understand simple RC filtering but why is an RCR configuration better?

Has it stood the test of time though? In other words, has anything yet 'hopped' all over it? Scratched the surface? Bitten chunks out of it? Well, you get the idea...

Many thanks Stu. Read, and mostly understood. There really are so many little nuggets of information contained in old threads. I just wish there were some way to filter out all the 'noise'.

Hi Stu. I don't suppose you could point me in the direction of this thread could you? It sounds like it's worth a read.

Okay, thanks anyway chaps. Stu, I'm not sure of the specs but you may be right about the labeling on the cable. It was more the board end connectors I'm interested in. Just curious though, that's all.

Season's greetings to all. Can anybody shed any light on the name/make of the 26 pin ribbon cable connectors as found on the CD3.5 PCB and in other Naim components. The array of choice is staggering...

Which does make sense. And as Doug Self is at great pains to point out, almost all recorded music has passed through many such devices even before it hits the master tape so they can’t be that bad! But there’s always that nagging doubt.

Don't think I haven't considered the Lampization! Trouble is, I'm not sure I dare deal with the massively high voltage involved. However, I also don't understand how and why that would improve things and would prefer to understand the existing circuit before implementing such a radical change...