Search found 1496 matches
- Fri Jan 20, 2012 8:18 am
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
Yes, I agree the low impedance RC networks seem to sound better than the high impedance ones, though as yet I am unsure if that is due to the network or the choice of valves used to drive them. However I (and others) think the important point about the LCR topology is that the network is a constant...
- Fri Jan 20, 2012 8:11 am
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
Thanks for the great post jc. In going back to your blog, I noticed you don't have a blog archive mast thing so it makes it very hard to find stuff without wading through the entire thing which is getting pretty big now. Any chance of a blog archive can be retrofitted easily like those hifi heroin a...
- Fri Jan 20, 2012 7:45 am
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
LCR still does something that RC doesn't, but the one I have is behind the curve now, one day I will have time to bring it up to date. I knew I was going to be in trouble when I posted here about LCR being the end :P Don't know the topology. Most LCR phonos use high gm valves for a low Z circuit. T...
- Thu Jan 19, 2012 7:50 pm
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
Now if I can get this front-end a little bit better ( not much needed ) then I will launch into the next bit , which is a 6N6P ( active loaded ) cathode-follower feeding Dave Slagle's 1.5k RIAA chokes . I have them upstairs ... The LCR route is what I was aiming for but ran out of money. I wanted t...
- Thu Jan 19, 2012 8:43 am
- Forum: Computer Audio
- Topic: XBMC and Vortexbox
- Replies: 9
- Views: 7395
My understanding is XBMC is a client that was designed with Vortexbox in mind as the server. AFAIK, it's used mainly for video but can be used for audio. It might be a bit big for the Raspberry Pi but soft squeeze or some such should be just fine. I'm not sure if XBMC can be slimmed down for less de...
- Wed Jan 18, 2012 8:05 pm
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
then I'm tempted to try JC's 'folded cascode Gm amp' circuit , which uses ideas from John Curl . His blog is inspiring. I'm very tempted by his gm amp with the d3a. I've only briefly looked at it so don't fully understand what's going on yet. However my current phono, though nothing ground breaking...
- Wed Jan 18, 2012 3:33 pm
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
It's that whole charmless thing you mention that put me off when I tried it and although I tried a bunch of things, I didn't go as far as you Mark. Well done! It is tempting to do this input stage for a whole bunch of reasons. Although a cascode is similar to a pentode, can it be loaded down like a ...
- Tue Jan 17, 2012 6:10 pm
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
And me.Paul Barker wrote:However a pair of good transformers satisfies me.
I reckon this is a taste thing as the FET/valve cascode vs the stepup/valve route seems to polarise people. I just couldn't get on with the FET/valve cascode but then maybe I wasn't doing it right. It was a long time ago.
cheers,
Stephen
- Tue Jan 17, 2012 8:52 am
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
- Tue Jan 17, 2012 8:43 am
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
I never heard of the Oz-Loesch until about 10 years ago so don't know when it surfaced. Sound Practices 1 is around Summer 1992. I was using fet/valve cascode front end on my phono in the late 80's but I can't remember where I got the idea so sadly can't reference my sources ;) Certainly wasn't the ...
- Tue Jan 17, 2012 7:41 am
- Forum: Everyones Projects
- Topic: j-FET / Triode Phono front-end
- Replies: 287
- Views: 174865
- Sun Jan 15, 2012 5:48 pm
- Forum: Assorted Stuff
- Topic: Digital Front Ends
- Replies: 134
- Views: 36457
- Wed Dec 28, 2011 2:20 pm
- Forum: Computer Audio
- Topic: next years project
- Replies: 7
- Views: 5699
- Wed Dec 28, 2011 2:16 pm
- Forum: Computer Audio
- Topic: XBMC and Vortexbox
- Replies: 9
- Views: 7395
I might have been thinking about this too much :) I really wish I had thought about a Vortexbox a year or so ago. The cost of hard drives now is scary by comparison. 'spose I had hoped that XBMC Live could be used on the yet to arrive Raspberry Pi for little money. Yeah it's harder work and what cos...
- Mon Dec 26, 2011 3:19 pm
- Forum: Computer Audio
- Topic: XBMC and Vortexbox
- Replies: 9
- Views: 7395
XBMC and Vortexbox
I've been wading around the net looking at Vortexbox and the various streaming devices like Squeezebox Touch. That would be the easy solution but I read about a bunch of issues with the Touch and I don't fancy going that route. Cost being another one. I also don't want to be tied into a manufacturer...