Resistance Check

DavidO · 881

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Offline DavidO

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on: March 10, 2014, 03:07:26 PM
Hi All..... I just finished building the amplifier and I am currently in the process of testing the resistance levels on all the terminals. Unfortunately, I am getting different readings on both the right and left center pin RCA inputs. Specifically 105 ohms on the left and 99 ohms on the right. I was wondering if anyone could help me debug the issue.

Kind Regards,

David
« Last Edit: March 10, 2014, 04:16:14 PM by DavidO »



Offline fullheadofnothing

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Reply #1 on: March 10, 2014, 03:15:29 PM
There is some variation between the two sides of your potentiometer. This is completely normal and not a problem.

Joshua Harris

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Offline DavidO

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Reply #2 on: March 10, 2014, 04:15:43 PM
Thanks! That provides some reassurance. My powersupply resistance readings appear to be all wrong now:

1: Reading as I haven't tested (picks up as 1)
2: Same as 1
3: 0
4: 0
5: 0
6: Same as 1
7: Same as 1
8: 0
9: 1
10: 1
12: 0
13: Climbs to 270
14: 0
20: 0
22: 0
B3: 2.9
B6: 2.9
RCA - 99-105
Ground: 0



Online Paul Birkeland

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Reply #3 on: March 10, 2014, 05:33:26 PM
Thanks! That provides some reassurance. My powersupply resistance readings appear to be all wrong now:

1: Reading as I haven't tested (picks up as 1)
2: Same as 1
3: 0
4: 0
5: 0


Are these resistances? Terminal 2 and terminal 4 are wired together, therefore they cannot have different resistances. 

Paul "PB" Birkeland

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