audio-talk

Do you plan other experiments with the Dave Slagle units, Nick? Ithink the first thing I will do, is build them into their own box so they are not held together with clipleads. Then I need to decide if they need the buffer or not, and if they do what the difference is. Though there is the option of...

Ah, that I can believe that. The comments at the time was the steel was used for medical instruments because of its lack of radioactivity. I was somewhat skeptical of this. But reading the wiki artical, it talkes about medical equipment, and that I can believe. I was thinking scalples which didn't m...

Check that you have the most up to date drivers for the card. Unless you have fiber to your house (i.e live in Japan) the WiFi should have no problem keeping up with a ADSL line. (unless its being used for other things like streaming audio, but I would still expect at least 10mb/s throuput. Try usin...

Driving a TVC in parafeed needs a little care as the parafeed low end response is determined by the inductance load of the TVC and the parafeed cap Yep, see my comment about tha AVC. I am trying to work out if the feedback loop on the anode follower helps here, but I suspect it starts to require a ...

Hi-so the ripple is a positive only component !

Not entirly, its AC, so has positive and negative parts, but as its superimposed on a much bigger DC component its effectivly all +ve (or -ve, depending what you call 0)

resonate in the 100+MHz region Thats usefull information James, one possible implication of that I can think of is the field from a nearby transformer could well contain big switching spikes from any rectification, this could (I guess) punp the cap into ringing even if its got ferrites on its input...

Well, not wanting to run it in for Colin (but I am going to anyway), I got my AVC's this morning (after having to go and collect them after Parcel Force forgot to put the box on the van). First impressions are very positive, the volumn steps ar a bit course as its the cheaper 14 step ones, and its j...

But after each diode, you have half of a sine wave, adding one or more diodes won't alter that. It might have some effect on the switching noise, but I can't see how it would affect ripple.

Well, to turn the question round, why would it?

One of the things I was trying to achieve with the large array of small caps, was to avoid one of the side effects of using diffiring values, I suspected that there must be a xover type situation gaoing on, the path to ground seen by a 100hz signal will be different to that seen by a 10kHz one. Of c...

Hi, nice looking amps, Basically it uses descending values of supply caps, which works a treat! Interesting, have you any more details on that, power supplys are one of my areas of interest, Andrew and myself have had some interesting (sometimes beer fulled) discussions on them (including the prime ...

What pray, do damper diodes, damp?

http://www.earlytelevision.org/damper.html

Fair e nuf.

Looks alright with a quick check. But a couple of questions What are the resistors from the input (I assume) the seem to be between the input and the pot? Also I would not earth like that. I would take both 0v from teh phono input, to the star point you have on the left of the amp, then take a wire ...