I have been collecting the series of articles on "Class-A Imagineering" sic by Graham Maynard that have been appearing in Electronics World magazine. Unfortunately our uni library didn't get the September issue of the magazine, hence I have not been able to read 'part 4'. I have parts 1-3 and 5-6. The series of articles contain a number of things which I think are seriously misleading or...

Hi - does anyone have a favourite LP supplier for new rock/pop/chart stuff? I'd like a copy of Norah Jones' 'Feels Like Home' and I've seen it for 14UKP at http://www.101cd.com/Music/info.asp?id=6202558 - just wondering if there's anywhere else, particularly UK, or a London shop. As an aside (possibly) I have the CD, but I find the recording quality terrible, compressed and flat, with...

I'm just finishing off a basic power supply for a computer style CD player to use as a stand-alone CD player with my hi-fi. I've built it in a computer PS box, and so far it consists of two 20VA trannies, configured with 6v and 12v secondaries. I've mounted a 78S05 and a 78S12 on heat sinks about 1.75 ins square bolted to the case, and have used a bridge rectifier (100v, 3A) and 4,700uf cap for...

Contrary to what Stewart and others think, I've spent 35 years building and tweaking hifi with one aim in mind - to make the hi-fi system sound like live music. I didn't use measurements for this, I used my ears since I've been a professional musician for most of my life. I also did all improvements methodically, switching one thing at a time, and preferring a closer approach to the original...

Hi, Interested in a Denon DM31. Thinking about speakers to go with it... Has anyone got it set up with Monitor Audio Bronze B2s ? Can the Denon handle the B2s? The Denon sounded a tad bright on audition (but not overly so) and I expect the warmer feel of the B2s would complement it well, and provide a natural, easy-to-listen-to sound.. Can anyone testify to this ? Thanks for comments.

That a very large percentage of microphones used in digital recordings are valve microphones. Oh dear :-(( Neumann 49, 50, 56, 64 and U87 are very popular. Don't believe me? of course you don't:-) Check the AES Journal (of which I am sure you are

Hi, Does anyone have any experience of the QED MusiQ IS system or know anywhere that demos it ? Many thanks Ed

http://forums.wishville.co.uk/index.php?showtopic=11742&view=findpost&p=183810 If you have comments, please post them here in uk.r.a , and don't bother trying to post them to that site; you'll fail anyway. Guess which one I am! Martin --

this fellow is over the moon. If he had made such an overture in this group he would be hanging from a lamp-post by now This is my experience of special interest groups. I belong to the Leak group, and Leakies are continually exchanging help on rebuilding amps - what parts and part values, fault finding, valuing etc etc. As you say, members also say 'come over and I'll take a look'. I don't see...

Average playing time of an LP = 20 minutes Rotational speed of an LP = 33.3 rpm Hence, number of rotations = 666 Coincidence? :-) --

Stewart's last post made me think (extraordinary as that sounds); Does the fact that a Vinyl single spins quicker mean the sound is more defined? As you're covering more distance with the same amount of information you can get better definition, i.e.. your higher frequencies appear longer on the faster spinning record and are therefore easier to pick up. Does this make sense and is it...

I need some advice about my speakers please, I bought a set of quad 12L's last December and all seemed fine but over the course of 8 months the tweeter on the left channel was developing a crackle which eventually lead to it cutting in and out. I sent them to quad servicing who said "Contacts loose on crossover caused intermittent bass and treble" and promptly sorted it free of charge. Once...

On Saturday, while browsing in a second-hand bookshop, I can across a battered copy of "High Fidelity Valve Amplifiers" by Lewis Yorke. It was on the shelf marked "Science Fiction" Iain

Can somebody with the right technical knowledge please tell me how to set my ng settings so I don't see posts from specific named posters? I'm on AOL. I can supply any other techncal information needed to answer this question. Many thanks for all assistance. Andy === Andy Evans === Visit our Website:- http://www.artsandmedia.com Audio, music and health pages and interesting links.

My line of work means I have to travel quite a bit. I'm looking for a portable player to listen to music in B&B/hotel room etc. I'm fine for in the car Most of my music is vinyl though I've quite a lot of classical and trance CDs, also listen to radio quite a bit. Thinking maybe something that plays MP3s as well as CD and radio, clock would be handy as well. Transportability is the major issue.

#ECC99 - Notes by users http://www.jj-electronic.sk/tube_ecc99.htm http://www.ampdesign.de/ECC99%20Artikel.htm Driver of power triodes such as 300B, 2A3 ..., output stage headphoneamplifiers, CDs, power stage little P-P triode amplifiers in class A (10W-4xECC99) and parallel voltage power supplies. Can be used instead of 6N30P, 5687, E182CC, 6840, 6BL7. ECC99 (mu 22, rp about 2.5k at Va...

So what was it in that last post of Andy's that finally snapped the patience of two of us, at the same moment, in the same way, and to exactly the same effect? Bear in mind that serious valve amp builders are equally exasperated with the generalisations of those who are NOT up to date with valve technology and don't inform themselves on a regular basis of circuits, valve characteristics...

unless one considers airbrushing out aging rock/jazz stars wrinkles (KH) Errm, how much do you charge for this? Can you get rid of the seven signs of ageing? (reply privately) === Andy Evans === Visit our Website:- http://www.artsandmedia.com Audio, music and health pages and interesting links.

Hi - I wonder if anyone can shed some light on the operation of a Hitachi HMA 7500 mk2 pre/power amp: 1. It can connect through two in/outputs - direct and 'condenser coupling'. Anyone any idea what this coupling thing is? 2. There's a switch on the front of the power amp labelled 'BLT' - when it's switched in the speakers switch off. 'BLT' is also marked on the LH direct input on the power...

A little birdy tells me, Stewart has a middle name starts with the letter "T" Any idea what the "T" stands for ? Dave www.davewhitter.myby.co.uk