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-   -   what 300B design would you recommend but... (http://www.diyaudio.com/forums/tubes-valves/85676-what-300b-design-would-you-recommend-but.html)

jarthel 31st August 2006 01:49 PM

what 300B design would you recommend but...
 
does not require a preamp?

I've seen one and it's from audiodesignguide.com (Andrea Ciuffoli).

Anything else?

thanks for the help

kmtang 31st August 2006 02:12 PM

I would recommend the JE Lab's 300B. It is well proven and with excellent quality sound.


Johnny

Klimon 31st August 2006 04:04 PM

http://www.diyparadiso.com/sedesign1.htm

I haven't heard the 300b amps but this guy knows how to design a great sounding amp. His choice of driver tubes (c3m / 2c51) should be hard to beat.

Simon :D

ghpicard 31st August 2006 08:18 PM

Thorsten's Legacy...
Get it before T gets it out of the air...

Katapum 31st August 2006 09:58 PM

Quote:

Thorsten's Legacy...
:down:

jarthel 31st August 2006 10:21 PM

Quote:

Originally posted by ghpicard
Thorsten's Legacy...
Get it before T gets it out of the air...


requires a preamp I think

ps. I already saved that one in my harddrive :)

Briney 31st August 2006 10:29 PM

JEL Deluxe
 
Greetings,

I'm listening to my JEL stereo version without a pre and I think it's great.

It's also pretty easy to build and parts are easy to find.

You can start cheap and upgrade as you go. I'm on version 4 having
switched all the iron from Hammond to James.

I just wish someone would give me a pair of WE 300b's 8-).

Brian

Katapum 31st August 2006 10:44 PM

Quote:

ps. I already saved that one in my harddrive
I built one!

jarthel 31st August 2006 11:15 PM

Re: JEL Deluxe
 
Quote:

Originally posted by Briney


You can start cheap and upgrade as you go. I'm on version 4 having
switched all the iron from Hammond to James.

I'm somewhat different that I start big (not that very big but at least quality parts). cheaper in the end.

===================


let me repeat that I require a design that doesn't require a preamp (i.e. the design has a volume control built-in)

I feel that adding a pot at the input on a design that doesn't have one is as as simple as connecting the wires.

Thank you.

ghpicard 31st August 2006 11:56 PM

Quote:

Originally posted by jarthel



requires a preamp I think

ps. I already saved that one in my harddrive :)


I built one with a non-regulated but heavily filtered PS, with 45 output tubes, and custom built transformers, and it sounds fine to me. I'm using it without pre with an unmodded DVD player as a source until I can get something better, and have previously used it with several other digital sources and a tape deck (ugh) and it works fine.
You can use an EL84, an SV83 (P15P) or a C3m as a driver... I have used it with a couple of the first two and it sounds fine to me...

A pentode driver in pentode mode has its advantages.

Now, Katapum, if you could be more specific on your thumbs down, that would add to the discussion and to the OP request for help.

Gaston


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