Author Topic: HP 3478A service manual IC U102  (Read 2462 times)

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Offline yogece

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HP 3478A service manual IC U102
« on: November 04, 2013, 02:48:47 pm »
Hi ,
i have got the service manual of HP 3478A; on page number 149  schematic of current source(programmable current source) is given.It is used to select the value of particular resistor to change the current; for switching  P-MOSFET is used and it is designated as U102 but nowhere i could find the part number.can any one help me?

Online Vgkid

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Re: HP 3478A service manual IC U102
« Reply #1 on: November 04, 2013, 03:17:31 pm »
It looks like a custom componet if it is the fet array.
it is part number:   1qf7-0067
and it looks to be possible to still buy one from here:
« Last Edit: November 04, 2013, 04:59:02 pm by Vgkid »
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