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From: chad@oscar.cs.byu.edu (Chad)
Newsgroups: rec.models.rc,sci.electronics
Subject: what transistors in my Futaba MC112B?
Message-ID: <1991May22.215112.13541@hamblin.math.byu.edu>
Date: 22 May 91 21:51:12 GMT
Sender: news@hamblin.math.byu.edu (Usenet News)
Reply-To: chad@yvax.byu.edu
Organization: Brigham Young University
Lines: 31

--
() are for the benefit of the sci.electronics folks who aren't RCers

Hi

I have a Futaba MC 122B ESC  (electronic speed control) that I was using
in my (radio controlled) Tamiya 4wd Porsche 959. Anyway, it failed and
with the help of the head of the BYU CS hardware fix-it lab I identified
3 of the transistors that were bad and removed them.  Now I need to find
replacements.  There is no manufacturer's labeling on the transistors
and only the following numbers:

S110

1    79


That is it.  These are supposedly FET transistors.  We looked in the ECG
replacment index and found two S110 numbered components but they weren't
remotely close to  FET transistor.

Does anyone know what sort of transistors I need to put in this to get
it going again?  I can't afford to buy a new ESC.

Thanks for any leads!

*************************************************************
Chad Leigh 
Brigham Young University / on leave from DEC
chad@yvax.byu.edu /  chad@norge.enet.dec.com
*************************************************************