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BrianW · 08-30-2003, 05:22 PM

Well I got the Power Supply (CPS1007), and dry fitted all the pieces. I have a couple questions:

1) The Voltage regulator uses two transistors to off load the linear regulation heat. Both have 3 connections. The larger one (2N3055 NPN Power Tramsistor) goes to a heatsink, and the smaller one (BD135 NPN Power transistor) is on the board. The one on the board has no indication which way to put it. The middle pin goes to a pin on the voltage regulator. One of the outer pins goes directly to the +24VDC , and the other one goes to a pin on the large transistor. I did some searching on the small transistor, and found out that the middle pin is the Collector, and one of the outer pins is an Emitter, and the other is Base. Any Help???

2) The plans call for two ceramic capacitors (100 pF & 100uF), yet in the kit the only ceramic capacitors are labeled 101 & 104M. I am at a loss as to which one is which. {EDIT} I did a little searching and all I could find info on is the one labeled 104M. I read a few spec sheets, and it always lists a uF voltage. So I imagine that the 104M is the 100uF, and the 101 is the 100pF. What do you think?

BTW, the heatsink is large (4.75"X2.5"X1.5"), but I think i will have a spot for it.

Any help on the above questions is appreciated, but I am also emailing the supplier.

BrianW

08-30-2003, 05:22 PM	#48
BrianW Cooling Savant Join Date: Jun 2001 Location: Desert City in California Posts: 631	Well I got the Power Supply (CPS1007), and dry fitted all the pieces. I have a couple questions: 1) The Voltage regulator uses two transistors to off load the linear regulation heat. Both have 3 connections. The larger one (2N3055 NPN Power Tramsistor) goes to a heatsink, and the smaller one (BD135 NPN Power transistor) is on the board. The one on the board has no indication which way to put it. The middle pin goes to a pin on the voltage regulator. One of the outer pins goes directly to the +24VDC , and the other one goes to a pin on the large transistor. I did some searching on the small transistor, and found out that the middle pin is the Collector, and one of the outer pins is an Emitter, and the other is Base. Any Help??? 2) The plans call for two ceramic capacitors (100 pF & 100uF), yet in the kit the only ceramic capacitors are labeled 101 & 104M. I am at a loss as to which one is which. {EDIT} I did a little searching and all I could find info on is the one labeled 104M. I read a few spec sheets, and it always lists a uF voltage. So I imagine that the 104M is the 100uF, and the 101 is the 100pF. What do you think? BTW, the heatsink is large (4.75"X2.5"X1.5"), but I think i will have a spot for it. Any help on the above questions is appreciated, but I am also emailing the supplier. BrianW __________________ Water Cooled Inwin Q500 (Dual Rads: Rad1 = DTEK Pro Core \| Rad2 = Blick Ice Estreme, Hydor L30, Dangerden Maze2, Bay Res Typhoon Reservoir, 1/2 " DD Tygon Thick Wall Hose). Flow: Res, Pump, CPU watervlock, Y into both rads, both rads into res independently. Athlon XP 1800+ (@ 1731 - 150mhz fsb.), on a Asus A7N266-c, and a Radeon 9000 waiting for RMA'd Saphire 9800 ultra from Newegg) Last edited by BrianW; 08-30-2003 at 06:04 PM.*