audio-talk

Interesting. My KR 300BXLS sounded horrid after running at 4.4V DC for a long time, progressively getting worse. Maybe running them a little closer to 5V would be better though.

I think they sounded better over voltage, but it's only hunch as I didn't run them like this long enough to be sure.

My (well, Andrew's really) C3g Aikido phono has selectable load resistors - 12 to choose from at the flick of a switch.

Despite the very kind offers from Dave and Steve I just can't face bringing my speakers - my back's going in to spasm just thinking about moving them to the door :cry:. So I'll bring the JVC DD TT with Kontra B, C3g Aikido phono, and WE91 300Bs. Can either hook up to some kindly donor speakers, or m...

I'm interested in the Cat Stevens - Tea for the Tillerman please Samantha.

If I didn't have the Martin Stephenson I'd have that too, takes me back 20 years. Definitely worth a spin.

I've wondered about ESR before. How would I find find a cap's ESR rating - it's not something commonly listed. And how would I know whether that's good, bad, high or low?

No problem David, pm me your address and I'll pop a couple in the post.

How many ECC88s do you need David? I think I've got a few nos ECC88/6DJ7 somewhere, and I know I have some Chelmer 6922s too.

Nice footage of more valves and amps in this vid, including what looks like 212s. http://uk.youtube.com/watch?v=pe_cxXvmY8Y&feature=related We're going to Japan in four weeks time. I had toyed with the idea of looking Sakuma san up, but thought it might not be much of a day out for Sue. :oops: S...

Yeah, and a straight glass and an umbrella. Hey, no cherry though.

I'll create a model of your PSU this weekend if you like and you can have a play around and see what happens.

Not sure I'm the best qualified here to do this, but of course. I'd have done it for nowt, but if you're buying

Have you tried modelling the PSU in PSUDII Dave? It's very interesting to see what happens when you play around with components and values, and it's pretty easy to use once you've got the hang of it. It's a useful starting point when considering how to tweak (and build) the PSU.

How much current are the 6EM7s drawing Dave? Just wondered what the voltage drop across the 400R resistor is - the 385V rating might be a bit close to the actual voltage at this point in the PSU. Probably fine, especially if you're just giving it a whirl to see how it sounds, but just a thought.

Congratulations Dave. How does it sound compared to SS rectification?

Cheap seems popular then. Does that say something about us?

0.6mm should do fine for most things, depends on the current you expect to be passing at that point. Going OT a little, what do people use for wiring up in general? I tend to use single core stuff from Rapid up to 1.5A, and 6A multicore stuff from Farnell for larger heaters, earthing and longer run...