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MFJ-259B Test Point Voltage measurements

The values shown were obtained from one known "good" unit and from some quick calculation using the schematic for the MFJ-259B

The schematic is available from this location  MFJ-259B schematic

 

Measured in known 'good' unit     Calculated values    
        V = voltage measured at Test Point T1
TEST POINT R = 0 R = 49.0 OPEN   TEST POINT R = 0 R = 49.0 OPEN
               
T1 3.08 3.09 3.08   T1 V V V
T2 3.05 0.07 3.04   T2 V 0.00 V
T3 3.06 1.58 0.05   T3 V 1/2V 0.00
T4 0.13 1.53 3.10   T4 0.00 1/2V V
                 
T11 1.39 1.39 1.39   T11 0.45V 0.45V 0.45V
T12 0.62 0.01 0.62   T12 .2 V 0.00 .2 V
T13 1.38 0.65 0.01   T13 0.45V .2 V 0.00
T14 0.01 0.60 1.38   T14 0.00 .2 V 0.45V

 

K0TO April 22, 2008