Hi Netlist,
I'm glad to see another F2 builder. It's hard to describe the sound experience this amp is able to reveal, unless you hear it yourself (that you did). Only then one is able to realize how meaningless is to judge the amplifier based on the THD figures. There's no way to put some things on paper...
By the way, did you sometimes have the feeling that her voice is coming out of the flower, while the spakers and equipment seem to dissapear?
😎
I'm glad to see another F2 builder. It's hard to describe the sound experience this amp is able to reveal, unless you hear it yourself (that you did). Only then one is able to realize how meaningless is to judge the amplifier based on the THD figures. There's no way to put some things on paper...
By the way, did you sometimes have the feeling that her voice is coming out of the flower, while the spakers and equipment seem to dissapear?
😎
Beautiful speakers Netlist, those look like Fostex drivers - can you describe the speakers a bit? I picked up 2 pair of modified FE126 from Planet10 but haven't started building cabinets yet (Frugal Horn for 1 pair).
hi,
the Fonken is another planet10 design for the FE126
http://www.planet10-hifi.com/fonken.html
cheers,
m.
the Fonken is another planet10 design for the FE126
http://www.planet10-hifi.com/fonken.html
cheers,
m.
Twitchie, do have a look at this thread:
http://www.diyaudio.com/forums/showthread.php?s=&threadid=88557&highlight=
/Hugo
http://www.diyaudio.com/forums/showthread.php?s=&threadid=88557&highlight=
/Hugo
Thanks lovechild and Netlist for the links - it seems that in order to really appreciate Nelson's latest creations (F-amps), you need to have high efficiency speakers.
I'm very tempted to build the F2 and almost did (still might), but then the F4 came out and, well, you know how the hype always surrounds the latest releases ...
I'm very tempted to build the F2 and almost did (still might), but then the F4 came out and, well, you know how the hype always surrounds the latest releases ...
twitchie said:
That is generally the outcome, confronted by a surfeit of
creativity. It is not going to stop anytime soon.
😎
Hi,
Here is my F2:
Very good sound whith a tube srpp péamplifier and D58 ES.
Thanks to Mr Nelson Pass
Bruno
Here is my F2:
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Very good sound whith a tube srpp péamplifier and D58 ES.
Thanks to Mr Nelson Pass
Bruno
Hi,
The logo is Siemens
1uF TS 200V=
P M
MADE IN FRANCE 5 54
They were used in mimitary applications (navy)
I don't no any more.
Bruno
The logo is Siemens
1uF TS 200V=
P M
MADE IN FRANCE 5 54
They were used in mimitary applications (navy)
I don't no any more.
Bruno
Hi,
In the service manual, http://www.firstwatt.com/downloads.htm , there is a capacitor C6 that is not in the first schematic.
Do you know why?
I want to test some capacitor. What is the best technology for C3?
Thanks
Bruno
In the service manual, http://www.firstwatt.com/downloads.htm , there is a capacitor C6 that is not in the first schematic.
Do you know why?
I want to test some capacitor. What is the best technology for C3?
Thanks
Bruno
Hi Bruno,
i think there is a mistake. Regarding the PCBs there is not enough space for an additional 15,000uF capacitor.
Nelson can shed some light on it.
I have also a F2 clone in progress. But i am not at the point of capacitor comparison on C3 yet.
I have planned to give a more bright sounding capacitor a first try. Something like Mundorf Silver/Oil or so.
Ralf
i think there is a mistake. Regarding the PCBs there is not enough space for an additional 15,000uF capacitor.
Nelson can shed some light on it.
I have also a F2 clone in progress. But i am not at the point of capacitor comparison on C3 yet.
I have planned to give a more bright sounding capacitor a first try. Something like Mundorf Silver/Oil or so.
Ralf
du bonnieure said:
Hi, I am building the F2 as well and have come across the two schematics that illustrate one with C6 and one without it as well. In the F2 service manual it shows both (C4 and C6) as 15000uF however the footprint on the boards in the manual shows a C4 less than half the size of C6. Would anyone out there know if C4 and C6 are both needed and if both are 15K???
Thanx - Stan
