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Old 29th February 2004, 02:38 PM   #91
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To check a mosfet just use the same setup as if you were matching them. If you run across a broken one you will get very strange readings and it'll be quite obvious. With new mosfets I've never had one out of the tube that was bad.
Mark
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Old 29th February 2004, 02:46 PM   #92
yoke is offline yoke  Croatia
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Thanks Mark for replay...
But I bouth those ollready matched...so...can I just mesure some resistance betwin pins or something ?

Josip
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Old 1st March 2004, 10:21 AM   #93
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I have a question on the AXE-1 calculation sheet.
The voltage at the beginning is the overall voltage?
for instance when we have 30volts here does that mean that the power supply will have +/- 15 Volts?
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Old 1st March 2004, 10:30 AM   #94
Netlist is offline Netlist  Belgium
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In your example that would be +/-30V.

/Hugo
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Old 1st March 2004, 10:37 AM   #95
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yeah that´s what I thought.
I did a few calculations.
What would be the lowest voltage that could be used without having to sacrifice quality?
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Old 1st March 2004, 11:40 AM   #96
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Anyone has experience with:

Vishay draloric's as sold by partsconnexion , they are 0.1% accurate and really cheap....

Ralph
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Old 1st March 2004, 02:23 PM   #97
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Default Split

I have split the IP issue off into its own thread here, it is a worthwhile subject, but we are trying to keep this thread pure and simple! Thanks
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Old 1st March 2004, 02:41 PM   #98
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Default Re: Split

Quote:
Originally posted by pinkmouse
I have split the IP issue off into its own thread here, it is a worthwhile subject, but we are trying to keep this thread pure and simple! Thanks
Thank you!
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Old 1st March 2004, 05:32 PM   #99
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Here is the status of mine

A-X Monoblocks;
1kVA @21V dual secondaries Vic Magnetics
432,000 uF capacitance 216,000uF per Rail
CRCRC Filter Arangement 0.15Ohm R's On Sinks
Dual Rectifiers FRED 64amp from IXYS on Seperate Sink
Stacked type sink with 560Watt theoretical dissipation per side.
(calculation based on my ol fluid dynamics book) 30degree C

Will be using 16 devices per channel total with 10-12 amps bias
Theoretical Rail voltage is +/-23-24 Volts.
Total Dissapation will be 460Watts 230 per side

Any boo boo's so far?

Any Comments or Suggestions?
Regards
Scott Gregory

I will post pictures as soon as I can get them small enough.
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Old 1st March 2004, 05:37 PM   #100
Coulomb is offline Coulomb  England
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Quote:
Originally posted by SGregory
Here is the status of mine

A-X Monoblocks;
1kVA @21V dual secondaries Vic Magnetics
432,000 uF capacitance 216,000uF per Rail
CRCRC Filter Arangement 0.15Ohm R's On Sinks
Dual Rectifiers FRED 64amp from IXYS on Seperate Sink
Stacked type sink with 560Watt theoretical dissipation per side.
(calculation based on my ol fluid dynamics book) 30degree C

Will be using 16 devices per channel total with 10-12 amps bias
Theoretical Rail voltage is +/-23-24 Volts.
Total Dissapation will be 460Watts 230 per side

Any boo boo's so far?

Any Comments or Suggestions?
Regards
Scott Gregory

I will post pictures as soon as I can get them small enough.
Won't 10 to 12 Amps of bias push your peak power output below 4 Ohms?

Regards

Anthony
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