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Orion colbolt cb1200.1 puzzle.
Orion colbolt cb1200.1 puzzle.
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Old 14th September 2017, 08:33 PM   #1
rhempz01 is offline rhempz01  United States
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Default Orion colbolt cb1200.1 puzzle.

Anyone know what value resistors belong in the amp.. He is a picture of the board in all its awesomeness. The quality is astounding smh... Does anyone know what the resistors are for the power supply? The amp originally had p55nf06.... And 4 irf640n for the outputs. I think they are 10r, can use 3205's and what resistors should I use here....
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Old 14th September 2017, 08:35 PM   #2
rhempz01 is offline rhempz01  United States
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Resistors?
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Old 14th September 2017, 08:36 PM   #3
rhempz01 is offline rhempz01  United States
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I changed these already.
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Old 14th September 2017, 10:10 PM   #4
rhempz01 is offline rhempz01  United States
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Resistors?
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Old 14th September 2017, 10:58 PM   #5
rhempz01 is offline rhempz01  United States
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Resistors?
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Old 15th September 2017, 12:02 AM   #6
Perry Babin is offline Perry Babin  United States
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If this supply is a standard configuration (it appears to be), the 3205s with 47 ohm gate resistors should be OK. Don't inadvertently install 47 ohm resistors in locations that are not gate resistors.
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Old 15th September 2017, 12:35 AM   #7
rhempz01 is offline rhempz01  United States
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OK perry, that's what I was thinking. But everything over there is burnt. So I can't really tell other than the trace to the gate leg of the PS fet. I think there are some 1k mixed in there also. Only two for something.
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Old 15th September 2017, 07:43 PM   #8
rhempz01 is offline rhempz01  United States
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Perry which driver transistors should I change in this amp to drive the new 3205's?
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Old 15th September 2017, 07:49 PM   #9
rhempz01 is offline rhempz01  United States
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Drivers for the 3205's the transistors that are in the board now are 2n4403, 2n4401? I changed what I thought them to be on a power daughter board
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Old 15th September 2017, 09:38 PM   #10
Perry Babin is offline Perry Babin  United States
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The emitters of the driver transistors will be connected to the gate resistors for the 3205s.
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