Archived from groups: rec.audio.high-end (More info?)
Hi all,
I am about to build a phono pramp and wanted to have a few designs to
look at for ideas.
Anyone know of a high-end schematic or circuit description on the web
that does not use the common receiving tubes such as 12ax7s etc..
I am looking for something that uses special quality tubes etc.
Archived from groups: rec.audio.high-end (More info?)
<maxdimario@aliceposta.it> wrote in message
news:cqahh30ef6@news3.newsguy.com...
> Hi all,
> I am about to build a phono pramp and wanted to have a few designs
to
> look at for ideas.
> Anyone know of a high-end schematic or circuit description on the
web
> that does not use the common receiving tubes such as 12ax7s etc..
> I am looking for something that uses special quality tubes etc.
You can replace the 12AX7 with a 7025, which is the same tube, only
"special quality".
Archived from groups: rec.audio.high-end (More info?)
the Musical Fidelity NuVista preamp uses 6CW4's -- a nuvistor tube which was
popular as a low noise front end for frequencies above 50MHz. . I used a
nuvistor 50MHz converter for 6m ham radio receiving. It was very quiet.
<maxdimario@aliceposta.it> wrote in message
news:cqahh30ef6@news3.newsguy.com...
> Hi all,
> I am about to build a phono pramp and wanted to have a few designs to
> look at for ideas.
> Anyone know of a high-end schematic or circuit description on the web
> that does not use the common receiving tubes such as 12ax7s etc..
> I am looking for something that uses special quality tubes etc.