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Old 25th January 2011, 06:36 PM   #1
viki_v2 is offline viki_v2  India
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Default Preamp pcb

Hello Friends,
I need help for building a tube preamp ,to be paired with b500 amp.
Request help from all.

Regards
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Old 25th January 2011, 06:58 PM   #2
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What are your requirements and preferences?
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Old 25th January 2011, 07:06 PM   #3
viki_v2 is offline viki_v2  India
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frankly i do not posses much knowledge about these things, So any help is welcome.
The amp i am building is 500 watts amp.
i have heard solid state things, and now want to feel the musicality of tubes.
some help on what to look for will help me in deciding.
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Old 25th January 2011, 07:20 PM   #4
DF96 is offline DF96  England
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Well-designed tube preamps don't have musicality, but are simply transparent.
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Old 26th January 2011, 07:01 AM   #5
viki_v2 is offline viki_v2  India
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I would ike to feel what ransparent is like.
Tubes tend to give smooth and warm sound isnt it.
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Old 26th January 2011, 07:46 AM   #6
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Have a look at my Borbelly tube line-amp on the Pass forum. Search for Suggest me a pre-amp for my F4.
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Old 26th January 2011, 08:04 AM   #7
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SY's Red Light District. Best pre I've ever built.
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Old 26th January 2011, 08:35 AM   #8
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Over the weekend, I built a VERY simple pre-amp using a minimal number of components. To my ears, it's very transparent. At the moment I'm feeding it into a cheap Samson reference amplifier powering a pair of MS 816 speakers and it knocks spots off the old Technics hi fi amp that used to sit in my living room.

Most of the components can be soldered direct to the valve bases, and I used a piece of Veroboard for the power supply.
E80F/EF86 pre-amp
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Old 26th January 2011, 01:45 PM   #9
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I'll second the triode connected EF86 preamp - I used a white cathode follower on the end of mine. Very nice sounding with budget or tricky-dicky parts.
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Old 26th January 2011, 02:18 PM   #10
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Click the image to open in full size.

The Borbelly was easy to clone and uses readilly available ECC83 and ECC81 valves

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