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HP 3245A universal source refurbishment and upgrades

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deepfryed:
after about 18h of up time, source seems to agree well with my more recently calibrated 34401a. I wouldn't have expected the capacitor replacement to have such an effect, perhaps the old capacitors had more leakage currents ? I might get some from the bin and check them.


--- Code: --- Set       Read       Delta
 0.00000   0.000007   0.000007
 0.25000   0.250006   0.000006
 0.50000   0.500008   0.000008
 0.75000   0.750002   0.000002
 1.00000   1.000002   0.000002
 1.25000   1.250002   0.000002
 1.50000   1.500003   0.000003
 1.75000   1.750004   0.000004
 2.00000   2.000005   0.000005
 2.25000   2.250003   0.000003
 2.50000   2.500004   0.000004
 2.75000   2.750003   0.000003
 3.00000   2.999999  -0.000001
 3.25000   3.250004   0.000004
 3.50000   3.500002   0.000002
 3.75000   3.750005   0.000005
 4.00000   4.000002   0.000002
 4.25000   4.250004   0.000004
 4.50000   4.499996  -0.000004
 4.75000   4.750002   0.000002
 5.00000   4.999995  -0.000005
 5.25000   5.249996  -0.000004
 5.50000   5.499999  -0.000001
 5.75000   5.750001   0.000001
 6.00000   6.000004   0.000004
 6.25000   6.250003   0.000003
 6.50000   6.500004   0.000004
 6.75000   6.750003   0.000003
 7.00000   7.000000   0.000000
 7.25000   7.249998  -0.000002
 7.50000   7.500007   0.000007
 7.75000   7.749999  -0.000001
 8.00000   8.000004   0.000004
 8.25000   8.250005   0.000005
 8.50000   8.500000   0.000000
 8.75000   8.749995  -0.000005
 9.00000   8.999998  -0.000002
 9.25000   9.250000   0.000000
 9.50000   9.500008   0.000008
 9.75000   9.749999  -0.000001
10.00000  10.000008   0.000008

--- End code ---

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