DVD-Software.info

[Fabio Berutti]

There were some messages concerning this double triode some days ago. I
found it is similar to the Philips 6021, and an example of a tube preamp
made with such a tube can be found at: http://www.audiodesignguide.com/se/.
I'm considering making a very small phono preamp with it, something that can
fit in a solid-state-like box without giving out as much heat as an open
oven.
(my last project, a SE 6S33S, dissipates some 300W to produce 12+12WRMS into
8 ohms and being 30x40 cm the top plate reaches some 70°C... good for
roasting marshmallows during Northern Italy foggy winters, but it needs to
be "de-commissioned" from May till October).

Ciao

Fabio

[Ruud Broens]

"Fabio Berutti" <fabio.berutti@aliceposta.it> wrote in message
news:Zsczd.568206$35.23992763@news4.tin.it...
: There were some messages concerning this double triode some days ago.
I
: found it is similar to the Philips 6021, and an example of a tube
preamp
: made with such a tube can be found at:
http://www.audiodesignguide.com/se/.
: I'm considering making a very small phono preamp with it, something
that can
: fit in a solid-state-like box without giving out as much heat as an
open
: oven.
: (my last project, a SE 6S33S, dissipates some 300W to produce
12+12WRMS into
: 8 ohms and being 30x40 cm the top plate reaches some 70°C... good for
: roasting marshmallows during Northern Italy foggy winters, but it
needs to
: be "de-commissioned" from May till October).
:
: Ciao
:
: Fabio

You like to visit the 'extremes in life', eh :-)
ciao,
Rudy

[Ruud Broens]

"Ruud Broens" <broensr@wanadoo.nl> wrote in message
news:41cd5fc4$0$1193$d5255a0c@news.wanadoo.nl...
:
: "Fabio Berutti" <fabio.berutti@aliceposta.it> wrote in message
: news:Zsczd.568206$35.23992763@news4.tin.it...
: : There were some messages concerning this double triode some days
ago.
: I found it is similar to the Philips 6021, and an example of a tube
preamp
: : made with such a tube can be found at:
: http://www.audiodesignguide.com/se/.
: : I'm considering making a very small phono preamp with it, something
: that can
: : fit in a solid-state-like box without giving out as much heat as an
: open
: : oven.
: : (my last project, a SE 6S33S, dissipates some 300W to produce
: 12+12WRMS into
: : 8 ohms and being 30x40 cm the top plate reaches some 70°C... good
for
: : roasting marshmallows during Northern Italy foggy winters, but it
: needs to be "de-commissioned" from May till October).
: :
: : Ciao
: :
: : Fabio
:
: You like to visit the 'extremes in life', eh :-)
: ciao,
: Rudy
BTW Nice one, in the Philips data sheets:
"Tensions de bruit de sortie due aux vibrations" , hehe
....the russian tube has the better curves, though

[-]

"Ruud Broens" a écrit dans le message

[Ruud Broens]

"-" <-@-.-> wrote in message news:335kl1F3tnnmeU1@individual.net...
: "Ruud Broens" a écrit dans le message
:
: > BTW Nice one, in the Philips data sheets:
: > "Tensions de bruit de sortie due aux vibrations" , hehe
: > ...the russian tube has the better curves, though
:
: With an anode voltage of 100V, the RMS voltage is less
: than 35mv with a 40Hz and 15g(!) acceleration...
:
: I wouldn't be too concerned to use them tubes in a preamp,
: unless you intend to use them in a Walkman while jogging....8o)
:
: And look at them shock resistance specs, 4 hammer blows of 500g !
:
: Syl
:
Yeah :-)
so, we could 'glue' 'm to a large woofer, use the
signal from the submini for a motional feedback system , hehe
Rudy

[Sander deWaal]

"Ruud Broens" <broensr@wanadoo.nl> said:

[Ruud Broens]

"Sander deWaal" <nospam@wanadoo.nl> wrote in message
news:ar9us09kamevvfllslkdarevpu6cjt54mc@4ax.com...
: "Ruud Broens" <broensr@wanadoo.nl> said:
:
: >: And look at them shock resistance specs, 4 hammer blows of 500g !
:
: >Yeah :-)
: >so, we could 'glue' 'm to a large woofer, use the
: >signal from the submini for a motional feedback system , hehe
:
: The ECC40 is far better suited for that task ;-)
:
: --
: Sander de Waal
: " SOA of a KT88? Sufficient. "

ehh, u worKed for Phi. Eindh. or sumthin' ?
:-)
Rudy

[Sander deWaal]

"Ruud Broens" <broensr@wanadoo.nl> said:

[Ruud Broens]

"Sander deWaal" <nospam@wanadoo.nl> wrote in message
news:8afus0te7ns34vehlpre2t0grl2lg5q2v2@4ax.com...
: "Ruud Broens" <broensr@wanadoo.nl> said:
:
: >: >so, we could 'glue' 'm to a large woofer, use the
: >: >signal from the submini for a motional feedback system , hehe
:
: >: The ECC40 is far better suited for that task ;-)
:
: >ehh, u worKed for Phi. Eindh. or sumthin' ?
: >:-)
:
: Close. Phi Huizen. Long ago.
: And I never "worked", I got paid for being there each day :-)
:
: --
: Sander de Waal
: " SOA of a KT88? Sufficient. "

Did you read: Tracy Kidder: The Soul of a Machine ?
'bout the early days in sil'valley, the 100+ hour weeks
to build the chips - fascinating !
Rudy

[Sander deWaal]

"Ruud Broens" <broensr@wanadoo.nl> said:

[Ruud Broens]

"Sander deWaal" <nospam@wanadoo.nl> wrote in message
news:o0jus0d0jp474sf3t0b5rga2f59c0a7pgq@4ax.com...
: "Ruud Broens" <broensr@wanadoo.nl> said:
:
: >Did you read: Tracy Kidder: The Soul of a Machine ?
: >'bout the early days in sil'valley, the 100+ hour weeks
: >to build the chips - fascinating !
:
: Been there, done that mr. Brunze.
: Back, when, I was fixxing radar's in the snow, I was laying the
: foundation for the cake, look over, there!
:
: Prove it in a double blind test, mr. sockpuupett Ruddy, or whatever
: you're name is today!
:
: LOL! ;-)
:
: --
: Sander de Waal
: " SOA of a KT88? Sufficient. "

Hehe, some script kiddie, numerous NG's
cheers,
Rudy

[Ruud Broens]

"Ruud Broens" <broensr@wanadoo.nl> wrote in message
news:41cf53fd$0$31018$d5255a0c@news.wanadoo.nl...
:
: "Sander deWaal" <nospam@wanadoo.nl> wrote in message
: news:o0jus0d0jp474sf3t0b5rga2f59c0a7pgq@4ax.com...
: : "Ruud Broens" <broensr@wanadoo.nl> said:
: :
: : >Did you read: Tracy Kidder: The Soul of a Machine ?
: : >'bout the early days in sil'valley, the 100+ hour weeks
: : >to build the chips - fascinating !
: :
: : Been there, done that mr. Brunze.
: : Back, when, I was fixxing radar's in the snow, I was laying the
: : foundation for the cake, look over, there!
: :
: : Prove it in a double blind test, mr. sockpuupett Ruddy, or whatever
: : you're name is today!
: :
: : LOL! ;-)
: :
: : --
: : Sander de Waal
: : " SOA of a KT88? Sufficient. "
:
sorry fellows, you have to be in the raoknow, to fully appreciate this
:-)
: Rudy
:
:

[Paul D. Spiegel]

I haven't checked out the 6N16B yet, but I used a 6021 and was pleased
with the results.

I had built a small desktop 1 tube/channel SE amp for use with a
computer at work. I was disappointed to learn that the computer audio output
was much less than the 1 volt I had planned on.

I didn't have much room to work with and I found the 6021 included with
a feature on sub-miniature tubes in Vacuum Tube Valley. I obtained a
few from Antique Electronic Supply to work with.

I mounted it on
half of a small Radio Shack bread board including the grid, plate, and
cathode resistors. I put a hole in the top corner of the chassis and
was just able to fit it in.

Not only did it fit, but the 6021 was a nice, clean sounding triode.
Here's how I configured it:

Grid resistor = 100K
Cathode resistor = 125
Cathode bypass = 100mf
Plate resistor = 17.5K
Plate supply = 250v

This gives a current of about 8ma, grid voltage of 2v, plate voltage
of 110v, and a plate dissapation of about 0.86w. The amplification is
about 25x and the output impedence is about 4.7K.

For a little tube, it gets pretty hot even though it's only dissapating
1.7 watts.

It sounds good and I like the small package. I'll be using it again.

[Ruud Broens]

"Paul D. Spiegel" <pds@ktb.net> wrote in message
news:cqr3g1$m5$1@dns.ktb.net...
: I haven't checked out the 6N16B yet, but I used a 6021 and was pleased
: with the results.
:
: I had built a small desktop 1 tube/channel SE amp for use with a
: computer at work. I was disappointed to learn that the computer audio
output
: was much less than the 1 volt I had planned on.
:
: I didn't have much room to work with and I found the 6021 included
with
: a feature on sub-miniature tubes in Vacuum Tube Valley. I obtained a
: few from Antique Electronic Supply to work with.
:
: I mounted it on
: half of a small Radio Shack bread board including the grid, plate, and
: cathode resistors. I put a hole in the top corner of the chassis and
: was just able to fit it in.
:
: Not only did it fit, but the 6021 was a nice, clean sounding triode.
: Here's how I configured it:
:
: Grid resistor = 100K
: Cathode resistor = 125
: Cathode bypass = 100mf
: Plate resistor = 17.5K
: Plate supply = 250v
:
: This gives a current of about 8ma, grid voltage of 2v, plate voltage
: of 110v, and a plate dissapation of about 0.86w. The amplification is
: about 25x and the output impedence is about 4.7K.
:
: For a little tube, it gets pretty hot even though it's only
dissapating
: 1.7 watts.
:
: It sounds good and I like the small package. I'll be using it again.

Great :-)
yep, one of the advantages of these (sub)mini's: low output imp.,
meaning
you can easily drive an eq. network, use the output with a divider for a
good cable drive signal, etc. :)
Rudy

[Paul D. Spiegel]

Paul D. Spiegel <pds@ktb.net> wrote: