Anyone have a source for high quality sockets ?
(with the kind of price tag that wets my lips)
A nice one for web socket staring:
http://www.amplimo.nl/contents/en-uk/d30.html
click on: more images
(with the kind of price tag that wets my lips)
A nice one for web socket staring:
http://www.amplimo.nl/contents/en-uk/d30.html
click on: more images
variations...
I found this link awhile back from aagreen (?) who built 3 different versions of the GG.
12AU7
6CG7/6FQ7
6SN7
http://www.users.bigpond.com/aagreen/page02.html
Stan
I found this link awhile back from aagreen (?) who built 3 different versions of the GG.
12AU7
6CG7/6FQ7
6SN7
http://www.users.bigpond.com/aagreen/page02.html
Stan
Stan,
I saw this last year, and corresponded with Tony (aagreen) directly asking him his final conclusions.
Here was his reply:Mon, 06 Dec 2004
My assumption with Mark's wanting to explore the octal, was that there were new ideas he had read from the net elsewhere.
Lyndon
I saw this last year, and corresponded with Tony (aagreen) directly asking him his final conclusions.
Here was his reply:Mon, 06 Dec 2004
My assumption with Mark's wanting to explore the octal, was that there were new ideas he had read from the net elsewhere.
Lyndon
LuckyLyndy said:
Hi Lyndon, the reason I posted the link was just to see if anything could be gleaned from it. I figure the more info out there or trial and error from the results can just add to the pot. It is interesting that for such a loved preamp there is not all that much info floating out there.
On my side, I'm a bit new to diy but definitely glad to see this project get cyber legs, I believe I got one of the last remaining books 'Audio Reality' out there about a year ago and felt this was the one for my 300B that I am sloooooly building.
I think the main mistake he made was not to raise the DC rails. He kept them at +/- 200 volts when they should have been higher.
Mark
Mark
One other thing I forgot to make mention of is the feedback resistor which he seemed to neglect any experimentation with.... slight changes in it make for large differences in overal sound.
Mark
Mark
Walter,
high time you invited me over for dinner.
I'm only half an hours drive from you, spent a childhood of eating frog legs with relatives across yonder border.
I'll bring an empty bag along.
high time you invited me over for dinner.
I'm only half an hours drive from you, spent a childhood of eating frog legs with relatives across yonder border.
I'll bring an empty bag along.
Well, you two guys should at least meet in a bar someplace in between.... Frog legs.....? I hguess they might eat those down in in Louisiana cajun country if there any left....
Walter,
You will need about 2 amps of filament current for the 6sn7's! The 12SN7 needs only 1 amp total.....
Mark
Walter,
You will need about 2 amps of filament current for the 6sn7's! The 12SN7 needs only 1 amp total.....
Mark
Right. I should have a bit of time over the next week or so to have a look at this, ( so I will be in touch about your PCB G!🙂)
Important things first. Do any of the selection of suitable valves have that wonderful blue glow? If not I think we need to urgently re-assess the project...
Important things first. Do any of the selection of suitable valves have that wonderful blue glow? If not I think we need to urgently re-assess the project...
Al,
If you are into "blue glow" you can always aply the same trick as Behringer does (but with blue led's than)😀
If you are into "blue glow" you can always aply the same trick as Behringer does (but with blue led's than)😀
An externally hosted image should be here but it was not working when we last tested it.
If we built it with Farnsworth Multipactor tubes it would have an immense blue glow... it was the blue glow in the multipactor that led him to fusion! We'd have to builf the tubes forst though.....
.....
Multipactor tube
Mark
.....Multipactor tube
Mark
- Status
- Not open for further replies.