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Topics - RobW

#1
The documentation for this project says to use a 12v power supply.
However, when I power up the PCB using 12v, and check the voltages on the IC's, all of the measurements are high.
When I use a check the voltages using a 9v power supply, the IC voltages are all within the range listed in the project documentation.
Has anyone had a similar issue with their build?
#2
This probably seems very simple to most experienced builders, but I'm having a heck of a time trying to check the values of resistors on a board I'm troubleshooting.
Is there some trick to this? I have 2 different DMM's, and can get readings from the IC chips without problem.
Any suggestions on this? I've tried multiple settings on the DMM's but nothing works.
Any help on this would be appreciated.
thanks !
#3
Having a bit of trouble with voltages on one of the chips in this build.
Here's what I have for IC2 - MN3007
Position --- should be --- I get this
1 --- 8.49 --- 8.38
2 --- 4.2 --- 4.1
3 --- 4.1 --- 1.2
4 --- 0 --- 0
5 --- 0 --- 0
6 --- 4.2 --- 4.1
7 --- 3.99 --- 8.25
8 --- 3.99 --- 8.25

these measurements are all taken without the chip in, so I don't think it's the chip itself.
Any suggestions on how to correct the issues with pins 3, 7, and 8 ?
#4
Open Discussion / Suggestions for a newby
April 27, 2021, 08:34:06 AM
I'm pretty new to pedal building, and looking for advice. Many of the projects I look at suggest having an Oscilloscope, and/or audio probe as part of your general tools to work with. Any suggestions on what are good items to get for a beginner? I'd rather get something good, than take the cheap path, but don't want to break the bank either. I've never used either one, so it would be helpful to get something that is user friendly if possible. Thanks ! Rob