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Old 29th March 2012, 06:36 PM   #12101
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It will sound expensive.
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Old 29th March 2012, 06:53 PM   #12102
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expensive and damn hot. shorter lifetime on your caps.
the regulators themself has to dissepate around 70W.
that meens a lot higher ambient temp in your chassis.
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Old 29th March 2012, 07:24 PM   #12103
a.wayne is offline a.wayne  United States
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Originally Posted by jacco vermeulen View Post
It will sound expensive.
.....................................
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Old 29th March 2012, 07:44 PM   #12104
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Quote:
Originally Posted by wengtech View Post
what will happen if :
1. using a 10000uf/71v to handle 24v rails.
2. using dual 0-36v toroidal trafo regulated into 24v.

does it affect the sound quality?
I will get to what happens in a minute as you ask

First question is do you already have those?

Why regulate trafo back to 24?

What Volts x Amps trafo rating? more than 800?

Because if you do already have them you could send them to me for proper disposal free of charge.

Then what happen will be me building super duper 50 V rails F5 with tanks

50 v rails(35 x1.47) mean biasing mosfets at max 1 amp so maybe 6 N&P pairs and cascoded duble imputs.

with 300 W dissipation (50 X6) I will have to use a fan on my sinks (2 X 80 mm units at about 30 % speed ) but that is a sacrifice I am prepared to make.

Actualy I am saving up for just similar components.

Sound quality will be greatly improved when I am having big party as 1812 vill stop clipping and spoil neigbours enjoiment (speaker protection cut off and put F5 in stand-by for 30 seconds or so)

Last edited by Bksabath; 29th March 2012 at 07:47 PM.
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Old 29th March 2012, 08:00 PM   #12105
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Quote:
Originally Posted by AudioSan View Post
expensive and damn hot. shorter lifetime on your caps.
the regulators themself has to dissepate around 70W.
that meens a lot higher ambient temp in your chassis.
EDIT: 120W not 70W.
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Old 29th March 2012, 08:06 PM   #12106
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If the heath in the box is a problem dont build the box.
Just stick 4 legs or 3 on the sink and wrap the non fins sides in perforated mesh
cheap to get and easy to cut with decent scisors.
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Old 29th March 2012, 08:34 PM   #12107
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better to use the power insted then.
insted of warming up the room with it.
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Old 29th March 2012, 09:37 PM   #12108
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warm room and class A amplifiers are blessing in Uk
Is normaly raining in here as we have 2 kinds of wheater
coldish rain and warmish rain.

This is what I use

Buy Perforated Sheets Perforated steel sheet,1.7mm dia RS 817-426-0002 online from RS for next day delivery.

Yeah do not let the mosfet sit there at bias VGS just play lauder.
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Old 29th March 2012, 09:52 PM   #12109
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Quote:
Originally Posted by kroyin View Post
The resistors are around .47 ohms (.9 ohms with DMM). More questions to help me with troubleshooting
Are the resistors marked/banded as .47 ohm resistors?

Does your DMM measure them as 0.9 ohms "out of circuit"?

Keep in mind, you may have twice the resistance (0.9 ohms v. .47 ohms) and therefore only half the current flow at the .48 v bias level.

I'd doublecheck those two resistors.
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Old 29th March 2012, 09:54 PM   #12110
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Quote:
Originally Posted by Bksabath View Post
warm room and class A amplifiers are blessing in Uk
Is normaly raining in here as we have 2 kinds of wheater
coldish rain and warmish rain.

This is what I use

Buy Perforated Sheets Perforated steel sheet,1.7mm dia RS 817-426-0002 online from RS for next day delivery.

Yeah do not let the mosfet sit there at bias VGS just play lauder.
yes. but i rather turn up the bias then let some regulators heat my room
nice ones
i use this for vents.
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