Search found 4368 matches

by simon
Fri Jan 18, 2008 9:34 am
Forum: Everyones Projects
Topic: C3g->2A3
Replies: 183
Views: 42892

I have mine with a 100k pot and no grid leak resistor at the moment. Wouldn't say it made that much difference to volume. I seem to remember the LW did go loud for not a lot of pot turn. I suspect that James has designed the amp so that all the pot is usable - Steve S has written a fair bit about th...
by simon
Fri Jan 18, 2008 9:28 am
Forum: Assorted Stuff
Topic: blind testing
Replies: 25
Views: 8127

Dave the bass wrote:I'm letting mah freak flag fly.
Erm, sorry? :lol:
by simon
Thu Jan 17, 2008 5:36 pm
Forum: Assorted Stuff
Topic: blind testing
Replies: 25
Views: 8127

Erm, I getting a bit concerned about the ethos here chaps. Steve's going to try his amps beforehand, Nick's going to bring proper boxes, what next? I tells yer, it's only a short step to booking a hotel with lots of individual rooms and calling it a "show". :lol: I might have to start a campaign for...
by simon
Tue Jan 15, 2008 1:11 pm
Forum: Everyones Projects
Topic: Passive and active power supplies for phonos
Replies: 20
Views: 7978

Hi Stephen, Thanks for taking the time to reply. There's plenty there for me to read and digest; I'll have a think about things and no doubt come back with some rather simple questions. I think you understand correctly about 4 caps - 1 each per channel and section. I'll sketch it tonight if I get ch...
by simon
Tue Jan 15, 2008 9:09 am
Forum: Assorted Stuff
Topic: F4s
Replies: 18
Views: 5459

Thanks Ian. I'm interested as I have 6N1Ps and 6N6Ps in the phono at the moment. When I've got the PSU fettled I'll have a play with 6CG7s and 6DJ8s, 5751s, ECC83s etc.
by simon
Mon Jan 14, 2008 10:46 pm
Forum: Assorted Stuff
Topic: owston meet 19/20th april ?
Replies: 298
Views: 55850

Owston Park Lodge DN6 9JG
by simon
Mon Jan 14, 2008 10:39 pm
Forum: Everyones Projects
Topic: Passive and active power supplies for phonos
Replies: 20
Views: 7978

I was close :D. I'll give it a whirl when my iron arrives. Which reminds me of something James D once recommended, and Dave Dove liked. Doesn't always work apparently... http://i57.photobucket.com/albums/g201/simon2a3/stuff/Primarysidefiltering.jpg I tried it on an Aikido headphone amp and thought i...
by simon
Mon Jan 14, 2008 7:45 pm
Forum: Everyones Projects
Topic: Passive and active power supplies for phonos
Replies: 20
Views: 7978

Ah! I think I get it now.

Like this?

Image

I haven't seen this before. Do the two chokes help to remove any, erm don't know how to describe it, imperfection?, on the mains?
by simon
Mon Jan 14, 2008 12:59 pm
Forum: Everyones Projects
Topic: Passive and active power supplies for phonos
Replies: 20
Views: 7978

Not sure I understand you Will :(. Do you mean that the 2 chokes take the place of the first cap in a cap input supply???
by simon
Sun Jan 13, 2008 11:22 pm
Forum: Speakers
Topic: DTB vs DIY MLTL
Replies: 451
Views: 88856

Yep, that does make perfect sense to me to. So, tell me again, just how are you going to do the inside surfaces? :lol: :lol: :lol: Not that I know anything (about anything really) but I would have thought that ply was pretty stable with the plys being cross-bonded. That's the beauty of ply, its sta...
by simon
Sun Jan 13, 2008 8:47 pm
Forum: Assorted Stuff
Topic: F4s
Replies: 18
Views: 5459

Which valves/PSU etc. do you use in your Aikido pre Ian? The 76 buffer stage sounds good :).
by simon
Sun Jan 13, 2008 6:16 pm
Forum: Everyones Projects
Topic: Integrated Pre-amp with Line Driver + Phono + TVA's
Replies: 157
Views: 44195

For my part, I have to say there is absolutely no reason Simon or Colin has to follow what I suggest, I don't fell ownership of this, merely offering to help with their projects and perhaps learn a little along the way. It's your build Colin, Simon....you must decide what you like..... cheers, -- A...
by simon
Sun Jan 13, 2008 6:10 pm
Forum: Everyones Projects
Topic: Passive and active power supplies for phonos
Replies: 20
Views: 7978

Passive and active power supplies for phonos

Diverting from an existing thread on Colin's integrated pre is the discussion between passive and active power supplies for phonos, in particular the one here, wot I built: http://www.atrj13.dsl.pipex.com/images/c3g_aikido_phono/andrews_aikido_phono_rev_d.pdf What was the passive circuit you used? I...
by simon
Sun Jan 13, 2008 5:16 pm
Forum: Everyones Projects
Topic: Integrated Pre-amp with Line Driver + Phono + TVA's
Replies: 157
Views: 44195

Sorry Colin, I think I've unintentionally diluted and hijacked your thread so I'll start a new one shortly. That'll probably end the discussion... :lol:.
by simon
Sat Jan 12, 2008 11:35 pm
Forum: Everyones Projects
Topic: Integrated Pre-amp with Line Driver + Phono + TVA's
Replies: 157
Views: 44195

A couple more thoughts. Andrew, presumably the regs can all share the same LC, they don't need their own? Stephen, if you were going to build a passive with lots of iron for this phono what would you start with? I've got a few WKZs and 4 No. 10H chokes coming from AE soon so have a few options perha...