So, if I decided to build a tube power amp kit for my quads what would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this category.

ScottW

"George M. Middius" wrote in message
...


ScottW said:

So, if I decided to build a tube power amp kit for my quads what would
people recommend I look at?

You're lucky Bush & Co. haven't cracked down on Usenet yet. If we
reelect them, the monitoring will increase, freedom of speech will be
curtailed even more, and more Americans will get carted off to
Guantanamo.


Exactly how many citizens are over there now?

"George M. Middius" wrote in message
...


Clyde Slick said:

So, if I decided to build a tube power amp kit for my quads what
would
people recommend I look at?

You're lucky Bush & Co. haven't cracked down on Usenet yet. If we
reelect them, the monitoring will increase, freedom of speech will be
curtailed even more, and more Americans will get carted off to
Guantanamo.

Exactly how many citizens are over there now?

I don't know, but they have to leave their sockpuppets behind.




at least one isn't it?
one is enough to set precedence with the current court and administration.

"Carl Valle" wrote in message
om...

"George M. Middius" wrote in message
...


Clyde Slick said:

So, if I decided to build a tube power amp kit for my quads what
would
people recommend I look at?

You're lucky Bush & Co. haven't cracked down on Usenet yet. If we
reelect them, the monitoring will increase, freedom of speech will
be
curtailed even more, and more Americans will get carted off to
Guantanamo.

Exactly how many citizens are over there now?

I don't know, but they have to leave their sockpuppets behind.




at least one isn't it?
one is enough to set precedence with the current court and administration.



I don't know.
Who is he?

"George M. Middius" wrote in message
...


Clyde Slick said:

So, if I decided to build a tube power amp kit for my quads what
would
people recommend I look at?

You're lucky Bush & Co. haven't cracked down on Usenet yet. If we
reelect them, the monitoring will increase, freedom of speech will be
curtailed even more, and more Americans will get carted off to
Guantanamo.

Exactly how many citizens are over there now?

I don't know, but they have to leave their sockpuppets behind.

You should be afraid, George. Be very afraid.

ScottW

"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

"Sander deWaal" wrote in message
...
"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

ScottW

"ScottW" said:

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

Hmmmm........a cathode follower.
Looks somewhat like the Musical Fidelity X10D, which can be had for
less than $100 if you look carefully. And there's a different circuit
in that.

I'm not particularly fond of the sound of cathode followers.
If necessary, I use the Loftin-White CF circuit which requires 2
triodes per channel.

Anyway, the price of 340 AUS$ or even 410 with the Nirvana upgrade
(wazzit?) looks a bit steep to me.
For this amount (ca. 300 US$) you should be able to get a good preamp
kit I think.

But that's just my opinion, don't let me stand in the way of your
plans ;-)

--
Sander deWaal
"SOA of a KT88? Sufficient."

"George M. Middius" wrote in message
...


ScottW said:

Exactly how many citizens are over there now?

I don't know, but they have to leave their sockpuppets behind.

You should be afraid, George. Be very afraid.

Notwithstanding your purchase of fine loudspeakers, I have to admit I
still think you're an idiot.

I guess I touched a nerve. It's ok to admit your feelings George. I'm sure
it's good for your social skills development.

No unneessary offense intended.

Offend away to your hearts content. I've never cared what you think of me
or anyone else.
Anyone who cares what you think of them must have some serious insecurity.

ScottW

"Sander deWaal" wrote in message
...
"ScottW" said:

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

Hmmmm........a cathode follower.
Looks somewhat like the Musical Fidelity X10D, which can be had for
less than $100 if you look carefully. And there's a different circuit
in that.

I'm not particularly fond of the sound of cathode followers.
If necessary, I use the Loftin-White CF circuit which requires 2
triodes per channel.

Anyway, the price of 340 AUS$ or even 410 with the Nirvana upgrade
(wazzit?) looks a bit steep to me.
For this amount (ca. 300 US$) you should be able to get a good preamp
kit I think.

But that's just my opinion, don't let me stand in the way of your
plans ;-)

Alway appreciate an experience and informed opinion.
Just started thinking about it. Most of the kits I've come across are quite
expensive. I'll keep poking about. Perhaps just getting the PWB, schematic
and parts list is a better way to go.

ScottW

"ScottW" said:

Alway appreciate an experience and informed opinion.
Just started thinking about it. Most of the kits I've come across are quite
expensive. I'll keep poking about. Perhaps just getting the PWB, schematic
and parts list is a better way to go.

If your goal is to end up with good gear, IMO it's always best to
follow a step-by-step program.
You recently got Quads, right?
Next step would be the RING DAC (got that ARCAM9 yet?) :-)

Don't worry about amplification, and certainly don't put in extra
links in the chain that only add extra costs and/or problems.

Again IMO, you're not improving anything with a CF (or MF X10D for
that matter) in your system.

--
Sander deWaal
"SOA of a KT88? Sufficient."

"Sander deWaal" wrote in message
...
"ScottW" said:

Alway appreciate an experience and informed opinion.
Just started thinking about it. Most of the kits I've come across are
quite
expensive. I'll keep poking about. Perhaps just getting the PWB,
schematic
and parts list is a better way to go.

If your goal is to end up with good gear, IMO it's always best to
follow a step-by-step program.
You recently got Quads, right?

I've had 'em about a year already. Time flies.

Next step would be the RING DAC (got that ARCAM9 yet?) :-)

CD92 shipped yesterday Im using a passive attenuator on my CD.


Don't worry about amplification, and certainly don't put in extra
links in the chain that only add extra costs and/or problems.

Again IMO, you're not improving anything with a CF (or MF X10D for
that matter) in your system.

Any pre kits you would recomend for phono?

ScottW

"ScottW" wrote in message
news:Li7Yc.57680$yh.26068@fed1read05...

"Sander deWaal" wrote in message
...
"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this
category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

ScottW

A good waste of $239.10 and shipping costs

"ScottW" said:

CD92 shipped yesterday Im using a passive attenuator on my CD.

Yo! You lucky man! :-)

Any pre kits you would recomend for phono?

I'm not really familiar with the kits that are sold in the US, but I'd
definitely look for a type with PASSIVE RIAA equalization.
For MM, tubes are fine.
For MC, I'd prefer a solid state solution.

A combination is possible as well: MC-pre (SS)---tube RIAA stage----
high quality switch for CD/phono selection---- 100 Kohm ALPS or Noble
potmeter.

You want remote control? See
http://stiftsbogtrykkeriet.dk/~mcs/Remote/index.html

In kit form, what more do you wish for? :-)

--
Sander deWaal
"SOA of a KT88? Sufficient."

"George M. Middius" wrote in message
...


Yappity-yappity-yap.

Notwithstanding your purchase of fine loudspeakers, I have to admit I
still think you're an idiot.

I guess

Actually, it's more than just a thought.


That puts you in uncharted territory. No wonder you're afraid.

ScottW

"Clyde Slick" wrote in message
...

"ScottW" wrote in message
news:Li7Yc.57680$yh.26068@fed1read05...

"Sander deWaal" wrote in message
...
"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what
would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this
category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

ScottW

A good waste of $239.10 and shipping costs

I'm all ears to recomendations

ScottW

"ScottW" said:

I'm all ears to recomendations

As I said earlier, I'm not at all familiar with US kits.
In general, I build my own stuff, so I've never felt the need to
search for a worthwile kit. I think I can do things better than all
those professionals ;-)

I'd still recommend this site to you:
www.worldtubeaudio.com

Much more information than you could possibly digest in a weekend.
There's also a section on kits.

--
Sander deWaal
"SOA of a KT88? Sufficient."

"George M. Middius" wrote in message
...



The Idiot said:

Yappity-yappity-yap.

Notwithstanding your purchase of fine loudspeakers, I have to
admit I
still think you're an idiot.

I guess

Actually, it's more than just a thought.

That puts you in uncharted territory. No wonder you're afraid.

You learned this shtick from Krooger, right?

Actually, I got it from you.

I mean.... before he got
too disgusting even for you. Are you pretending to be aphasic,
dyslexic, or retarded?

I'm pretending to be retarded enough to find you interesting. But I can't do
it anymore.

ScottW

"ScottW" wrote in message
news:1r8Yc.57703$yh.45738@fed1read05...

"Clyde Slick" wrote in message
...

"ScottW" wrote in message
news:Li7Yc.57680$yh.26068@fed1read05...

"Sander deWaal" wrote in message
...
"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what
would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this
category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

ScottW

A good waste of $239.10 and shipping costs

I'm all ears to recomendations

one of my Harman Kardon Citation I's

"Clyde Slick" said:

one of my Harman Kardon Citation I's

Selling out, Art?
Put it on Ebay and become a near-millionaire! :-)

--
Sander deWaal
"SOA of a KT88? Sufficient."

"ScottW" said:

I'm all ears to recomendations

http://www.audioelectronicsupply.com...d_num=PH-1_KIT

http://www.bottlehead.com/et/adobesp.../seduction.htm

http://www.diyhifisupply.com/diyhs_cole.htm

And tons more, of course.

--
Sander deWaal
"SOA of a KT88? Sufficient."

"Sander deWaal" wrote in message
...
"Clyde Slick" said:

one of my Harman Kardon Citation I's

Selling out, Art?
Put it on Ebay and become a near-millionaire! :-)


I got too much stuff!

ScottW said:

"Clyde Slick" wrote in message
...

"ScottW" wrote in message
news:Li7Yc.57680$yh.26068@fed1read05...

"Sander deWaal" wrote in message
...
"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what
would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this
category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

ScottW

A good waste of $239.10 and shipping costs

I'm all ears to recomendations

You can try to grab youself a vintage Scott like I did. With the power
requirements of your Quad, I'd try to find a 299C or 299D. The phono sections
on these units sound pretty good, too. Or, if you just need the power amp,
why not find a McIntosh MC40? Instead of assembling something from kit form,
why not use the same effort to restore something older that will probably wind
up sounding as good, if not better, than a modern piece?

Boon

"Marc Phillips" wrote in message
...
ScottW said:

"Clyde Slick" wrote in message
...

"ScottW" wrote in message
news:Li7Yc.57680$yh.26068@fed1read05...

"Sander deWaal" wrote in message
...
"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what
would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this
category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second
hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

ScottW

A good waste of $239.10 and shipping costs

I'm all ears to recomendations

You can try to grab youself a vintage Scott like I did. With the power
requirements of your Quad, I'd try to find a 299C or 299D. The phono
sections
on these units sound pretty good, too. Or, if you just need the power
amp,
why not find a McIntosh MC40? Instead of assembling something from kit
form,
why not use the same effort to restore something older that will probably
wind
up sounding as good, if not better, than a modern piece?


He's looking for a pre amp.
I also have a Fisher tube preamp I can cut loose.
But my Scotts are all integrated amps.

Sander deWaal wrote:


"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."








Upscale Audio is in Upland, California, note. I've dealt with Kevin Deal
and agree with your comments. He's very professional and gives reasonable
advice.
He's also quite knowledgable about NOS tubes and will discuss the pluses and
minuses of various brands with you.



Bruce J. Richman

Sander deWaal wrote:


"ScottW" said:

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

Hmmmm........a cathode follower.
Looks somewhat like the Musical Fidelity X10D, which can be had for
less than $100 if you look carefully. And there's a different circuit
in that.

I'm not particularly fond of the sound of cathode followers.
If necessary, I use the Loftin-White CF circuit which requires 2
triodes per channel.

Anyway, the price of 340 AUS$ or even 410 with the Nirvana upgrade
(wazzit?) looks a bit steep to me.
For this amount (ca. 300 US$) you should be able to get a good preamp
kit I think.

But that's just my opinion, don't let me stand in the way of your
plans ;-)

--
Sander deWaal
"SOA of a KT88? Sufficient."








Unless he's *really* comitted to the joy of construction, I'd recommend
something economical, but very nice, such as a used Conrad Johnson PV-10 or
PV-12 with internal phono stage. Both can be had on eBay or Audiogon for
reasonable prices - especially the PV-10.


Bruce J. Richman

Clyde Slick said:

"Marc Phillips" wrote in message
...
ScottW said:

"Clyde Slick" wrote in message
...

"ScottW" wrote in message
news:Li7Yc.57680$yh.26068@fed1read05...

"Sander deWaal" wrote in message
...
"ScottW" said:

So, if I decided to build a tube power amp kit for my quads what
would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this
category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second
hand
gear for sale.
He certainly could steer you in the right direction where to get a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

ScottW

A good waste of $239.10 and shipping costs

I'm all ears to recomendations

You can try to grab youself a vintage Scott like I did. With the power
requirements of your Quad, I'd try to find a 299C or 299D. The phono
sections
on these units sound pretty good, too. Or, if you just need the power
amp,
why not find a McIntosh MC40? Instead of assembling something from kit
form,
why not use the same effort to restore something older that will probably
wind
up sounding as good, if not better, than a modern piece?


He's looking for a pre amp.
I also have a Fisher tube preamp I can cut loose.
But my Scotts are all integrated amps.

Looking above, it looks like he's asking about all three...a power amp, a
preamp, and a phono stage. With the Scott, he gets all three.

Boon

"Clyde Slick" said:

one of my Harman Kardon Citation I's

Selling out, Art?
Put it on Ebay and become a near-millionaire! :-)

I got too much stuff!

Me too! Wanna trade?

--
Sander deWaal
"SOA of a KT88? Sufficient."

(Marc Phillips) said:

Looking above, it looks like he's asking about all three...a power amp, a
preamp, and a phono stage. With the Scott, he gets all three.

Well, it certainly looks cool, an amp with your own name on it !

--
Sander deWaal
"SOA of a KT88? Sufficient."

The Devil said:

http://www.tubebuilder.com/images/sc...eamps/5687.gif

Won't cost much. Most of the money goes into the power supply. If you
find you don't like the circuit, the power supply will still be good
for many other circuits, leaving you free to try something else for
very little outlay.

On the subject of power supplies, don't listen to what anyone else
says: you need *valve* rectifiers. :-) Silicon diodes with snubbers
and schottky types just aren't as good. And use choke regulation.
Under no circumstances use SS or valve regulation circuits. They're
horrible to music.

I would stick with the passive controller between CD player and amp.

Aim for an amp that puts out around 35-40 watts class A per channel,
something that uses 6550s, KT88s, KT90s, or KT100s. The output valves
need to be operated as triodes (thanks Sander!) for the very best
sound quality, but whatever circuit / kit you choose, we can look at
that and help you to make the conversion if it's designed for
ultralinear operation.

It may be worth just finding a good circuit online and then sourcing
the components yourself. Do not skimp on output transformers, and if
you can, budget for Black Gate decoupling and power supply capacitors
and Jensen coupling capacitors. It's best to put them in straight
away, rather than upgrade later, as they tend to need a lot more space
than lesser alternatives.

Why must you always butt in with excellent comments that I forget to
give?

--
Sander deWaal
"SOA of a KT88? Sufficient."

On Sun, 29 Aug 2004 01:26:19 +0200, Sander deWaal
wrote:

"ScottW" said:

I'm all ears to recomendations

As I said earlier, I'm not at all familiar with US kits.
In general, I build my own stuff, so I've never felt the need to
search for a worthwile kit. I think I can do things better than all
those professionals ;-)

I'd still recommend this site to you:
www.worldtubeaudio.com

Much more information than you could possibly digest in a weekend.
There's also a section on kits.

Not a kit, but:

http://cgi.audiogon.com/cgi-bin/auc....16344&auc&3&4&

As the Devil knows, I'm a big Croft fan (although I've had only
limited experience with the products). I'm not particularly familiar
with this model though. My Croft is the MicroA, a little $400 list
price jewel for which the Devil holds a bit of grudging respect. This
one seems like a higher end version of the sme design. Very
minimalistic and all hard-wired. I'm sure that you can unearth a few
Croft reviews.

If you go this route, you might be intrigued enough to seek out one of
their OTL amp designs.

"Marc Phillips" wrote in message
...
Clyde Slick said:

"Marc Phillips" wrote in message
...
ScottW said:

"Clyde Slick" wrote in message
...

"ScottW" wrote in message
news:Li7Yc.57680$yh.26068@fed1read05...

"Sander deWaal" wrote in message
...
"ScottW" said:

So, if I decided to build a tube power amp kit for my quads
what
would
people recommend I look at?

How about a tube preamp with phono stage? Any good kits in this
category.

IIRC, you're in California, right?
Have a look at
www.upscaleaudio.com
They're located in Uptown Ca.

Owned by Kevin Deal, a real nice guy.
Don't know if he has any kits, but he often has demos or second
hand
gear for sale.
He certainly could steer you in the right direction where to get
a
suitable amp kit as well.

Other places to look:
www.triodeelectronics.com (IL) Lots of links, too.
www.audiospecialist.com (also in CA)
www.worldtubeaudio.com (a portal that leads to everything
tube-related).

Good luck!

--
Sander deWaal
"SOA of a KT88? Sufficient."

What do you think of this approach?

http://www.printedelectronics.com/pr...ducts_tlp.html

ScottW

A good waste of $239.10 and shipping costs

I'm all ears to recomendations

You can try to grab youself a vintage Scott like I did. With the power
requirements of your Quad, I'd try to find a 299C or 299D. The phono
sections
on these units sound pretty good, too. Or, if you just need the power
amp,
why not find a McIntosh MC40? Instead of assembling something from kit
form,
why not use the same effort to restore something older that will
probably
wind
up sounding as good, if not better, than a modern piece?


He's looking for a pre amp.
I also have a Fisher tube preamp I can cut loose.
But my Scotts are all integrated amps.

Looking above, it looks like he's asking about all three...a power amp, a
preamp, and a phono stage. With the Scott, he gets all three.


No problem, I have a Scott integrated I can cut loose also.
a 299 or a 233
Too much stuff.

"Sander deWaal" wrote in message
...
The Devil said:

http://www.tubebuilder.com/images/sc...eamps/5687.gif

Won't cost much. Most of the money goes into the power supply. If you
find you don't like the circuit, the power supply will still be good
for many other circuits, leaving you free to try something else for
very little outlay.

On the subject of power supplies, don't listen to what anyone else
says: you need *valve* rectifiers. :-) Silicon diodes with snubbers
and schottky types just aren't as good. And use choke regulation.
Under no circumstances use SS or valve regulation circuits. They're
horrible to music.

I would stick with the passive controller between CD player and amp.

Aim for an amp that puts out around 35-40 watts class A per channel,
something that uses 6550s, KT88s, KT90s, or KT100s. The output valves
need to be operated as triodes (thanks Sander!) for the very best
sound quality, but whatever circuit / kit you choose, we can look at
that and help you to make the conversion if it's designed for
ultralinear operation.

It may be worth just finding a good circuit online and then sourcing
the components yourself. Do not skimp on output transformers, and if
you can, budget for Black Gate decoupling and power supply capacitors
and Jensen coupling capacitors. It's best to put them in straight
away, rather than upgrade later, as they tend to need a lot more space
than lesser alternatives.

Why must you always butt in with excellent comments that I forget to
give?

--
Sander deWaal
"SOA of a KT88? Sufficient."

I guess I'm gonna start this with a little homework via a book. What do you
guys think of Valve Amplifiers, 3rd ed. by Morgan Jones?

ScottW

"ScottW" said:

I guess I'm gonna start this with a little homework via a book. What do you
guys think of Valve Amplifiers, 3rd ed. by Morgan Jones?

Not familiar with that one, but how about the "Tube Preamp Cookbook"
by Allen Wright. Publisher Vacuum State Electronics.
Not really a "cookbook", but more a kind of journey through the tube
experiemnts of the author.
There are very detailed explanations about RIAA eq., shunt regulators,
and various other tube technologies.
In the last part, there are schematics that can be built.
In the book it is said that various circuits will be(come) available
in kit form, but I've not seen them yet........
This books actually asks for some electronics ( and audio!) basic
knowledge, and sometimes even more than that.

In case you don't have that background, you could e.g. start with
"Schematic Diagrams" by J. Richard Johnson, publisher Prompt
Publications.
Not all tube, but a general electronics basic course focused on
learning to read and interpret schematics.

Since I've lent the first book to some friend that I haven't seen for
years and I'm not in the posession of the latter book, I don't have
any ISBN numbers handy for you, sorry.

--
Sander deWaal
"SOA of a KT88? Sufficient."

The Devil said:

Haven't read it. The best book I have is ... ****, I can't remember
the title or the author. I can dig it out if you like. It contains
*lots* of math and is quite advanced, but does start at the beginning,
with materials and thermionic emission. Probably better to start with
something a bit more friendly. Ah, just remembered. Google, Google. If
this is the same website I read a year or so ago (and I'm 99.9 per
cent sure it is), it's a really good primer on everything valves.

http://www.tpub.com/content/neets/14178/index.htm

Thanks Dev, this is an extremely useful site. Bookmarked it
immediately.

--
Sander deWaal
"SOA of a KT88? Sufficient."

The Devil said:

How those particular OTLs would fare with 'stats I don't know.

About time we got to work on that, Dev.
I've finished my DAC and am ready for some new adventures in Tubeland.

Meet me at Pier 7 at 06:00 tomorrow and we'll discuss matters.

--
Sander deWaal
"SOA of a KT88? Sufficient."

The Devil said:

Meet me at Pier 7 at 06:00 tomorrow and we'll discuss matters.

I've been working on something else. You can catch the spiel here. I
hired an American to do the talking. Cheap enough.

http://media.ebaumsworld.com/retro.wmv

LOL! He looks like Nousaine ;-)
He didn't explain what it sounded like, though!

--
Sander deWaal
"SOA of a KT88? Sufficient."