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Messages - mikebarg

#1
Ok. one of the caps has no measurable ripple, but the other has .45 vAC.
#2
I don't see any DC on the speaker output.
#3
I pulled the caps and tested them. The value and ESR both looked good. I re-installed them on the board. I also removed the full wave bridge and checked it out of circuit. It's good too.
#4
Well this has been sitting on the bench waiting for me to get to it. It has a moderately loud hum. I have recorded it. I thought 60hz hum but, i checked the full wave bridge and the 2 main power capacitors. They all checked good. Any ideas where to go from here. See the video here https://youtu.be/mNbTI2KNZyI
#5
That makes since. It wouldn't be the first time I got inaccurate information online.
I went ahead and pulled the part and it tested good. So, I need to go back and re-evaluate.
#6
I agree. Thanks for the input. I'm wondering if this part had been replaced before. The board is marked with an X next to the part and the size is a little too small. The legs were bent out a little to get them through the board.
#7
It's a DB604. According to the datasheet that's a 400V, 3A.
#8
I'm working on an SWR Workingman's 12 combo(100 watts). I need  a full wave bridge rectifier. I have the schematic, but it doesn't show a spec for the rectifier. I checked the board and the spacing looks like .5 inches between legs. I'm thinking 5amp at 400+ volts should be enough. Any thoughts?
#9
Schematics and Layouts / Re: Randall RG100 G3 Plus
December 03, 2021, 09:42:53 PM
Thanks for the help. I've downloaded a pdf and am reviewing it.
#10
Schematics and Layouts / Randall RG100 G3 Plus
December 01, 2021, 05:50:11 PM
I'm trying to locate a schematic for the Randall RG100 G3 Plus. I've looked through this section already with no luck.