I've used Talon as well, their prices are usually only affordable by taxpayers via their respective governments but like this one they have surprised me in the past. One time they sent me the wrong part and they sent me the replacement and asked at my convience to send the other one back
On Wed, Nov 7, 2012 at 11:36 AM, Dick <[email protected]> wrote: > Thanks John -- You are the second one to suggest them. Talon is the deal for > sure. I ordered two of these parts. Fluke used them in a lot of gear. > > Have any volt-nuts modified the chopper system of the 343A to reduce parts > count and improve stability? Seems like a good place for an LT1150, OPA627 or > some such to improve overall performance.... > > Dick Moore > > > On Nov 7, 2012, at 4:00 AM, [email protected] wrote: > >> Message: 1 >> Date: Tue, 6 Nov 2012 14:10:16 +0000 >> From: John Lofgren <[email protected]> >> To: Discussion of precise voltage measurement <[email protected]> >> Subject: Re: [volt-nuts] Fluke 343A part >> Message-ID: >> <[email protected]> >> Content-Type: text/plain; charset="us-ascii" >> >> 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: [email protected] [mailto:[email protected]] On >> Behalf Of Dick >> Sent: Tuesday, November 06, 2012 1:06 AM >> To: [email protected] >> 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. > > > _______________________________________________ > volt-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts > and follow the instructions there. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
