Talon Electronics shows a Fluke FP226043 as the replacement for the MEM556C. They have 48 in stock at $5.12 with no minimum order.
http://www.talonix.com/shop/item.aspx?itemid=3978
-John
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On Behalf Of Dick
Sent: Tuesday, November 06, 2012 1:06 AM
To: volt-nuts@febo.com
Subject: [volt-nuts] Fluke 343A part
I picked up a fairly new Fluke 343A and it appears that Q39, MEM556C p-chan. enhancement-mode MOS-FET is shorted. This part seems to be unobtanium unless you are named Romney, Gates, or Walton. Any suggestions on a replacement or an alternative method? This part is the input signal chopper transistor, driven by a multivibrator.
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Talon Electronics shows a Fluke FP226043 as the replacement for the MEM556C. They have 48 in stock at $5.12 with no minimum order.
http://www.talonix.com/shop/item.aspx?itemid=3978
-John
-----Original Message-----
From: volt-nuts-bounces@febo.com [mailto:volt-nuts-bounces@febo.com] On Behalf Of Dick
Sent: Tuesday, November 06, 2012 1:06 AM
To: volt-nuts@febo.com
Subject: [volt-nuts] Fluke 343A part
I picked up a fairly new Fluke 343A and it appears that Q39, MEM556C p-chan. enhancement-mode MOS-FET is shorted. This part seems to be unobtanium unless you are named Romney, Gates, or Walton. Any suggestions on a replacement or an alternative method? This part is the input signal chopper transistor, driven by a multivibrator.
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