Author Topic: Seek specific resistance values from HP 3458A RP7  (Read 19467 times)

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Offline gejianyongTopic starter

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Seek specific resistance values from HP 3458A RP7
« on: April 12, 2024, 12:23:25 am »
 Repairing a 3458A RP7 that broke down. The circuit diagram is not very clear. Who knows if this is 9.5M or 9.9M
Asking who has this part for sale
« Last Edit: April 12, 2024, 01:01:34 am by gejianyong »
 

Offline Kosmic

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Re: Seek specific resistance values from HP 3458A RP7
« Reply #1 on: April 12, 2024, 12:30:56 am »
Repairing a 3458A RP7 that broke down. The circuit diagram is not very clear. Who knows if this is 9.5M or 9.9M

look like 9.9M to me. Also 9.9M would make a lot of sense since adding 100k you would have 10M on the input.
 

Offline gejianyongTopic starter

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Re: Seek specific resistance values from HP 3458A RP7
« Reply #2 on: April 12, 2024, 12:37:44 am »
Thank you. I think so too, but the drawings also look a bit like 9.5
 

Online donlisms

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Re: Seek specific resistance values from HP 3458A RP7
« Reply #3 on: April 12, 2024, 04:56:09 pm »
Yup.  The pixels in the middle of the right side are curved the wrong way for a 5; they form an upward point, not a downward curve.  Compare it to the 5 immediately to the left.
 


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