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Old 24th November 2011, 01:51 PM   #1
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Default The best valve amp!

Hello everyone,

i want to make myself a valve amp but i don't know which i should replicate!!
What amp do you think i should clone?
Could you suggest any schematics for this project?
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Old 24th November 2011, 02:39 PM   #2
GloBug is offline GloBug  Canada
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What level experience, what kind of parts do you have?

Read some of the "stickys" on safety first.

What can you afford to spend?
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Old 24th November 2011, 02:40 PM   #3
SY is offline SY  United States
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Power? Frequency range? Type of speaker?
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Old 24th November 2011, 02:50 PM   #4
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I'll do it with my father who has more than 20 years of experience in this electronics field.
Safety isn't an issue, thanks for your concern anyway!!
We do not have spare parts, but this wouldn't be a problem too.
We are talking about an amp for 20-20KHz and 75-150 wpc!
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Old 24th November 2011, 02:56 PM   #5
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A 75-150 wpc tube amplifier would be expensive....even for DIY!!

Steve
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Old 24th November 2011, 03:02 PM   #6
M Gregg is offline M Gregg  United Kingdom
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Quote:
Originally Posted by aLLoU View Post
I'll do it with my father who has more than 20 years of experience in this electronics field.
Safety isn't an issue, thanks for your concern anyway!!
We do not have spare parts, but this wouldn't be a problem too.
We are talking about an amp for 20-20KHz and 75-150 wpc!
Why do you need 75-100W?
In a normal size room 25Wper channel will make you shout to be heard!
Remember the speaker sensitivity is more important than the amp power...
If you are driving a wet sponge speaker then OK 200W...if its light and delicate the 10W will be two loud..
Don't think car hifi amp....

Regards
M. Gregg
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Last edited by M Gregg; 24th November 2011 at 03:11 PM.
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Old 24th November 2011, 03:07 PM   #7
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What range of money are you talking about Steve?
So, if it is too expensive for 150wpc, then how much can you estimate for 75-80wpc?
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Old 24th November 2011, 03:11 PM   #8
GloBug is offline GloBug  Canada
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Here ya go. Just don't stand to close to it.
Champ CBA-1000 Amplifier - Schematic Diagram

Build one for left and right, you'll be golden.

Last edited by GloBug; 24th November 2011 at 03:17 PM.
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Old 24th November 2011, 03:16 PM   #9
GloBug is offline GloBug  Canada
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Quote:
Originally Posted by aLLoU View Post
What range of money are you talking about Steve?
So, if it is too expensive for 150wpc, then how much can you estimate for 75-80wpc?
I would consider 20WPC to be "decent" sized tube amp.
These are real watts, not overrated "peak" solid state watts.

Good efficient speakers are key.
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Old 24th November 2011, 03:20 PM   #10
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Quote:
Originally Posted by GloBug View Post
Here ya go. Just don't stand to close to it.
Champ CBA-1000 Amplifier - Schematic Diagram

Build one for left and right, you'll be golden.
Or dead. 2.5kV ain't no joke.
Cool amp though.
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