Search found 4134 matches

by simon
Tue Aug 14, 2007 4:29 pm
Forum: Beginners
Topic: Aikido
Replies: 20
Views: 8745

Look forward to it!
by simon
Tue Aug 14, 2007 2:05 pm
Forum: Beginners
Topic: Aikido
Replies: 20
Views: 8745

Okay, if I understand this correctly, considering the first circuit on the third of Steve Bench's pages here: http://members.aol.com/sbench/reg3.html if I use a 750V ct tx, a GZ37 and choke input I reckon I should be able to achieve maybe 300V on the pass tube anode. Output voltage could be a little...
by simon
Tue Aug 14, 2007 9:12 am
Forum: Beginners
Topic: Aikido
Replies: 20
Views: 8745

Thanks for the offer Shaun. I'll see how I get on with Steve's top cap-less JJs - they may work a treat, who knows? I had a very quick think about the series reg at the weekend. There's not a lot in it really, the only things I'm missing are the EL509/6080 and maybe a cap or two. Think I've got a 10...
by simon
Tue Aug 14, 2007 8:37 am
Forum: Valves
Topic: 6C33C data sheet
Replies: 9
Views: 7122

Looking forward to it Nick. If it's as funkay in the bass as Andrew I's at the last Witham it'll be great :D
by simon
Fri Aug 10, 2007 1:33 pm
Forum: Beginners
Topic: phono stage
Replies: 25
Views: 15229

A smidge over 1.4V. If I remember correctly it was just over 1.7V with the 82R resistors. In his book MJ provides a table with voltage drop for various diodes. Can't remember now which was the most appropriate but I seem to remember it being something "simple", so will any old led do like one of the...
by simon
Fri Aug 10, 2007 12:25 pm
Forum: Beginners
Topic: Aikido
Replies: 20
Views: 8745

Thanks Steve, that's very kind. When I'm ready I'll pop over.
by simon
Fri Aug 10, 2007 9:29 am
Forum: Beginners
Topic: Aikido
Replies: 20
Views: 8745

Hi Shaun, Seems like I'm following in your footsteps :) . I was thinking about starting with the first error amplifier circuit on the third page as a starter. Interesting what you say about not being able to get the EL509 quiet. I haven't checked the 6080 out yet, SB refers to them in cascode - is t...
by simon
Fri Aug 10, 2007 9:05 am
Forum: Beginners
Topic: phono stage
Replies: 25
Views: 15229

I finally got around to trying a couple of 1N4007 dioides in place of the C3g cathode resistors on Wednesday evening. Just as Andrew predicted this increased the gain quite a bit. I'd say it is roughly equivalent to my PHONO II now, perhaps not quite as loud, but in that ball park. No obvious detrim...
by simon
Fri Aug 10, 2007 8:52 am
Forum: Everyones Projects
Topic: RIAA 1k5 LCR
Replies: 324
Views: 65313

Hi Andrew,

Sorry, I missed your reply. Thanks, I figured that was what you were doing, just wanted to check really.

Simon.
by simon
Wed Aug 08, 2007 1:37 pm
Forum: Beginners
Topic: Aikido
Replies: 20
Views: 8745

Hi Shaun, Sounds like you're doing okay. You understand it as well as I do anyway; don't think I'm the person to be increasing your knowledge :( . I'm more of a practical person so I tend to build before I really understand. It's not ideal, but at least this way I get to build stuff :wink: . One of ...
by simon
Tue Aug 07, 2007 12:58 pm
Forum: Beginners
Topic: Best output TXs for the money help
Replies: 60
Views: 21656

Maybe I have the two crap pairs they made
That would be very unlucky indeed...
by simon
Tue Aug 07, 2007 12:31 pm
Forum: Beginners
Topic: Best output TXs for the money help
Replies: 60
Views: 21656

Last time I spoke to them, which was probably last September maybe, they said they were taking someone on. Looks like things are improving then. I was going off their website for rough prices. When I ordered my c cores they were 188 euros a pair, but as part of my larger order including 4 chokes, a ...
by simon
Tue Aug 07, 2007 8:52 am
Forum: New Users
Topic: Aha! Found you!
Replies: 73
Views: 25151

Welcome aboard Al!
by simon
Tue Aug 07, 2007 8:50 am
Forum: Beginners
Topic: Best output TXs for the money help
Replies: 60
Views: 21656

I haven't added an opinion so far because my experience is rather limited - I have Hammond 1627SE and AE c cores, both 2.5k. Nick keeps recommending AE and in my very limited experience with good reason. To me the c cores sound better than the 1627s, they're smaller and more neatly packaged, and the...
by simon
Mon Aug 06, 2007 9:55 pm
Forum: Beginners
Topic: phono stage
Replies: 25
Views: 15229

i've just built an aikido 6np1-6np6 line stage with a series reg psu which is sounding pretty good Glad you like it Shaun. Is it the version on John Broskie's website or have you amended it? I could do with a bit of drive in front of my WE91s, but I don't need much gain at all. Ideally I'd bodge my...