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Old 3rd June 2008, 05:31 AM   #1011
Blues is offline Blues  United States
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Looks like Nelson decided 1.5A sounds better than 1.3A.
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Life simplified! Leap into the Warpspeed wormhole... http://www.6moons.com/audioreviews/warpspeed/1.html
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Old 3rd June 2008, 06:46 AM   #1012
Skorpio is offline Skorpio  Denmark
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Quote:
Originally posted by thomasfw



Who know the answer,please ?
2.4R in parallel probertly gives te best balance in current and you might mix the gate resistor with the 150R used for current limiting...
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Old 3rd June 2008, 09:26 AM   #1013
juma is offline juma  Germany
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Quote:
Originally posted by Variac
... it is even better that lots of people seem to be making their own boards!
Mark

Of course !
"Do It Yourself !" said the burning bush (it was on the second tablet - the one that Mel Brooks dropped)
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Old 3rd June 2008, 02:20 PM   #1014
GuidoR is offline GuidoR  Italy
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"Do It Yourself" and share your job...
Here my (very modest) contribute to the cause.
The program is the well-known ExpressPCB.
The imagine (copper side) is reversed, so is perfect for "laser printer and iron" technique.


Guido
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Old 3rd June 2008, 02:46 PM   #1015
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Quote:
Originally posted by Skorpio
2.4R in parallel probertly gives te best balance in current and you might mix the gate resistor with the 150R used for current limiting...
The 2.4 ohm resistor was used to trim for lowest distortion, which I
do if the channel exceeds .005% at 1 watt. As I have said, you need
an analyzer to be able to do this. A minority of channels need this,
and it is random in value and placement.
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Old 3rd June 2008, 05:42 PM   #1016
Goffe is offline Goffe  Sweden
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Quote:
Originally posted by Nelson Pass


Hey! That looks like my amp!


If the Zen Master says so I supposedly that I drawed the circuit right
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Old 4th June 2008, 12:34 AM   #1017
rubydac is offline rubydac  Hong Kong
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Cool Thanks Mr.Nelson (again)

After I success full with Aleph J now I used GOFFE's model to be my next project of F5
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Old 4th June 2008, 04:32 AM   #1018
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Will ZTX450 more stable in compare with using MPSA18 ?
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Old 4th June 2008, 04:46 AM   #1019
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Quote:
Originally posted by thomasfw


Will ZTX450 more stable in compare with using MPSA18 ?

They would be sleeping, probably over the life of F5 operation...
Forget their stability, grab any one and use it...
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Old 4th June 2008, 05:15 AM   #1020
FaTTy is offline FaTTy  Russian Federation
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Hi
Is the pair of 2sa970/2sc2240 will be a good replacement for ZTX450/ZTX550?
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