Best way to tune in BIAS F5 V2 Turbo - diyAudio
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Old 31st December 2012, 11:33 AM   #1
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Default Best way to tune in BIAS F5 V2 Turbo

I have read very little about the best way to tune the F5 Turbo v2.

I do not want to screwed up and enjoyed all possible help ...

A Good Year to all sharing the know
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Old 31st December 2012, 11:36 AM   #2
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What do you mean by tune?
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Old 31st December 2012, 12:39 PM   #3
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Originally Posted by buzzforb View Post
What do you mean by tune?
The best way to adjust the P1, P2 and P3.

Strain in which the best 1R, 0.4V or 0.3V? And as adjusts the P3?

A tutorial would be great ...
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Old 31st December 2012, 12:52 PM   #4
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I would suggest the F5 and F5T articles as an excellent starting point. They talk about properly biasing the amplifier. As for tweaking P3, you will have to use your ears or a distortion analyzer, as it will be different in every circuit
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Old 2nd January 2013, 08:57 PM   #5
Renron is offline Renron  United States
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Did you make your own boards?
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Old 2nd January 2013, 09:08 PM   #6
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Originally Posted by Renron View Post
Did you make your own boards?
The PSU I made with 4 pcb full of holes, channels bought the Jims Audio.

The PSU is easy to do, because it's only design the layout in pcb and solder the components.
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Old 2nd January 2013, 09:14 PM   #7
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Get a chance to read the articles? Any questions?
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Old 2nd January 2013, 09:49 PM   #8
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Originally Posted by buzzforb View Post
Get a chance to read the articles? Any questions?
Already had read the two, I have a std F5 will have to work 3 months, I can hear it now Charles Mingus.

My question is how to adjust the P3 to have ridden with 100ohms for each side, then it is a matter of luck and ears.

I'll start with 0.3V at Rs 1ohm, I have to use the Vishay IRF mosfets, say they'll have more distortion, I could not buy the Fairchild.

but I have a question here in my area can not buy 47.5 and 47.5K, 47K and 47R only, will be less than the 0.5 will greatly affect the accounts of the scheme.
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Old 2nd January 2013, 11:25 PM   #9
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Most pots come centered from the factory, so at startup, you will have standard F5. Adjusting that to alter harmonics can only be done with distortion rig or ear. You choose. The IRF will work great. You can compare them with Fairchild after your recovery. As for the resistor values, you are fine. 47k and 47 are what I supplies in GB. No difference in performance whatsoever.
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Old 3rd January 2013, 04:27 PM   #10
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Default Dale or fake Dale, that is the question...

Dale or fake Dale, that is the question...

I honestly do not know if this is true or false.

I know is that I was fooled again by a chinoca, bought 20 x 1ohm 3W resistors of 1%, and the liar sent me 25%.

Fortunately there are still some honest.

Does anyone know where I can buy the original R 1ohm? grateful
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