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Old 26th January 2012, 08:28 AM   #511
generg is offline generg  Germany
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it will........!

good luck!
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Old 26th January 2012, 08:39 AM   #512
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we were not waiting for an article ??
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Old 26th January 2012, 10:28 AM   #513
generg is offline generg  Germany
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the master is developing his treasures.........

do not disturb him...
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Old 26th January 2012, 10:36 AM   #514
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Originally Posted by juanitox View Post
sure you re right but bulbs are not a good idea with a daughter playing football in the living room
Certainly a consideration.
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Old 26th January 2012, 11:32 AM   #515
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halogen stick the good half way
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Old 26th January 2012, 12:53 PM   #516
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or lamp from US
I am just going to receive 4 pieces of 500w incandescent bulbs from italy . 220 volt . Just for the taste of trying them since I am always using halogen type .
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Old 26th January 2012, 01:55 PM   #517
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not a good idea you will have 35 watt dissipation on a 50 watt resistor , too short , try to find minimum of 100W or use 4 20 ohm , remember i use 1 800W 10 ohm resistor and my heatsink is still very hot with 75W off dissipation on it
How hot your heat sink gets is a function of the amount of power it's dissipating, not the power rating of the resistor..

Roscoe
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Old 27th January 2012, 03:43 PM   #518
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SIT amp V.3 ready to tun it on .... ZAbooooom i explode my amp again , a little smoke go out , i stop and mesure the B+ i have 50 V , look at my bias module 25V after the diodes ..and nothing on both lm337 ..

they fried , i think i must lowered the 20V AC with a res to use them . any idea
on the current of the bias ?

so i rewire my sit with the gate on earth and 1ohm resistor on the source . turn on ... sounds here again and what a sound!! no more hum or buzz with the R-CORE transfo and CLC filtering . i'v got 16V and 2.3 amp not so bad . pure pleasure . i will listen like this this week end before returning to negative bias

french sit V.3
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Old 27th January 2012, 04:33 PM   #519
generg is offline generg  Germany
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Merveilleux Monsieur!

Congratulations to version 3! and welcome in the club to make faults from time to time...

With negative bias you can try a 9V block and let him connected........so you cannot forget to connect him.
He will live with the correct voltage at least 5-7 days. Mine went in this time from 9.6 to 8.6V......

what kind of speakers are you driving?
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Old 27th January 2012, 04:42 PM   #520
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a german speaker nobody is perfect ...
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