Search found 4222 matches

by simon
Sun Aug 05, 2007 9:08 pm
Forum: Beginners
Topic: phono stage
Replies: 25
Views: 15827

My FTP program won't talk to the ISP for some reason so I can't upload the updated pdf tonight. An older one is here: http://www.atrj13.dsl.pipex.com/images/c3g_aikido_phono/andrews_aikido_phono_rev_B.pdf . I've played around with the C3g cathode resistor to increase gain and went as low as 68R but ...
by simon
Sat Aug 04, 2007 8:21 am
Forum: New Users
Topic: Aha! Found you!
Replies: 73
Views: 25986

I think we probably are Nick. I really couldn't picture you quaking in your boots whilst walking a dozen lurchers. :lol: I nearly fell off my chair laughing though. I'm not surprised you decided to walk away after that, I would have done so too I think.
by simon
Fri Aug 03, 2007 11:58 pm
Forum: New Users
Topic: Aha! Found you!
Replies: 73
Views: 25986

Hmmm. The "threat" made to Nick a few weeks ago was unneccesary and sums up how the old forum has changed for the worse. I felt it was more than a disagreement, a line had been crossed. But maybe that's just me. Apart from that it was rather funny as the poster clearly had no idea what he was postin...
by simon
Fri Aug 03, 2007 8:49 pm
Forum: Valves
Topic: 845's
Replies: 11
Views: 6283

That's Rod Burman. I got my KRs from him. No problems.
by simon
Fri Aug 03, 2007 1:26 pm
Forum: New Users
Topic: Aha! Found you!
Replies: 73
Views: 25986

Very true Nick, this had occurred to me. Time will tell I guess.
by simon
Fri Aug 03, 2007 1:17 pm
Forum: New Users
Topic: Aha! Found you!
Replies: 73
Views: 25986

Welcome Neal. Nick and Steve make good points. 2. It started to become hard work on the WD forum (IMHO), everytime you expressed an opinion, you were then expected to (or it was demanded) that you justify the opinion. IMHO, life it too short to expect or need everyone to agree with you. Completely a...
by simon
Fri Aug 03, 2007 9:01 am
Forum: New Users
Topic: Aha! Found you!
Replies: 73
Views: 25986

Welcome Tony.

It's rather pleasant here. :)

Simon.
by simon
Fri Aug 03, 2007 8:57 am
Forum: Valves
Topic: 845's
Replies: 11
Views: 6283

Actually, I think they have less of a "sound" than other 300b's, but this can possibly lead to the sound of the rest of the amp being more obvious. Yes, this is exactly what I suspect. I think they may well be inherently quite neutral, which in turn can be less forgiving of what's in front of them....
by simon
Thu Aug 02, 2007 11:27 pm
Forum: Valves
Topic: 845's
Replies: 11
Views: 6283

On ther downside, they do sound a bit more sterile, less warm and romantic. You may well be right Nick, but I do wonder whether if they're quite transparent to how they're driven. I've heard my KRs sound quite cool driven by 5693s and a passive, but with a little more drive from Ed's Squeezebox ins...
by simon
Thu Aug 02, 2007 9:14 am
Forum: Headphones
Topic: what Headphone amp do you have
Replies: 105
Views: 52717

Funny, the more I think about PSUs, the more complicated they become. Sometimes simple is better, sometimes not. The phono I'm working on has a little hum. That could be the AC heaters, or HT ripple, or both. I have 3 chokes in the PSU at the moment - perhaps I should try just one and see what happe...
by simon
Thu Aug 02, 2007 8:55 am
Forum: Headphones
Topic: what Headphone amp do you have
Replies: 105
Views: 52717

Ah, okay. The amp's drawing about 40mA so that would make a lot of sense. To keep the hum in perspective it's very small. With my old 414SLs it wasn't noticeable, it's only the 650s which are obviously a fair bit more sensitive where I picked some up. I was interested as much in whether this was HT ...
by simon
Wed Aug 01, 2007 10:20 pm
Forum: Headphones
Topic: what Headphone amp do you have
Replies: 105
Views: 52717

I've had a play with the PSU tonight. Before I had: GZ30 -> 10H 82DCR -> 40uF Sprague -> 390R -> 94uF Cerafine And I've just tried: GZ30 -> 14H 429DCR -> 47uF Cerafine -> 14H 429DCR -> 47uF Cerafine They model pretty similarly in PSUD but the 2 14H chokes give a smaller ripple and approx 10V less HT...
by simon
Tue Jul 31, 2007 1:46 pm
Forum: Everyones Projects
Topic: EL509 OTL Amplifier
Replies: 83
Views: 41514

Nick wrote:Myself AND someone who knew what they were doing :-)
:lol:
by simon
Tue Jul 31, 2007 12:34 pm
Forum: Everyones Projects
Topic: EL509 OTL Amplifier
Replies: 83
Views: 41514

However as soon as the HT is applied to the output tubes BLAM BLAM BLAM BLAM we have a stunningly good low frequency oscillator. and I know you managed to sort Simon's Blatting 2A3 In my case the BLAM BLAM BLAM BLAM was due to lack of gridstoppers on the C3gs and it made the 0A2 VR tubes click like...
by simon
Sat Jul 28, 2007 6:09 pm
Forum: Speakers
Topic: ESS AMT1
Replies: 10
Views: 5794

I used to think my old Linn Keilidhs and Exposure amps were pretty heavy. But single ended valve amps and large full range horns are a different ball game. Now I'm starting to think of my hi fi to be a little like a Land Rover. It's incredibly heavy, is rather large, looks kind of functional (which ...