Fwd: could this be posted (from Mike Chisena)

[John Teller]

The problem these days is you never know what is in an IC until you see 
what it is connected to.  Lots of 16-pin parts these days are 
microcontrollers - so not only do you need the part, but the software 
therein as well.

If it's a generator controller, the ICs are probably Op Amps of some 
sort - pretty easy to figure out what kind once you figure out what each 
pin is connected to.  Generators (actually alternators if they produce 
AC) are usually pretty simple beasts to control - put more current 
through the rotor and you get more current out of the field windings.  
Most of the circuitry is there to prevent overshoots and such.

--- JST



Iain McFadyen wrote:
> --- Michael Chisena <ka2zev at yahoo.com> wrote:
>
>   
>> Date: Tue, 11 Apr 2006 06:52:07 -0700 (PDT)
>> From: Michael Chisena <ka2zev at yahoo.com>
>> Subject: could this be posted
>> To: Iain McFadyen <mcfadyenusa at yahoo.com>
>>
>> Iain,
>>   Can you put this up on Taco's for me please.
>>   Thanks in advance.
>>    
>>   First Item..........
>>  
>> .......................................................................
>>   Hi all,
>>   Ive got another weird request.
>>    
>>   One of the things I get to fix is a generator controler for comercial
>> units that uses just two chips. 
>>    
>>   The problem is the p/n's on the chips are scratched out. 
>>   There is a local vendor that will be more than happy to 'fix' them for us.
>> For about 500 bucks!
>>    
>>   As a tax payer I balk at getting ripped off like that. I need to turn the
>> table on this joker.
>>    
>>   The help I need.
>>    
>>   Some years ago there was a big clip like thing that when placed over an
>> unmarked IC will run a test pattern based on different logic patterns and
>> identify the chip type in a little display window.
>>    
>>   They were expensive then,  new, about 300+ bucks.
>>    
>>   My questions are...
>>    
>>   Is there any reason why they might not work on CMOS chips?
>>    
>>   Anybody know what the proper name of these things are?
>>   Model numbers, vendors?
>>    
>>   Anybody got one for sale?
>>    
>>   Money waiting. Pay pal, or I can have my bank cut you a check.
>>    
>>   Thoughts please.
>>   Mike
>>   .......................................................
>>    
>>   Second posting.
>>    
>>   ...................................................
>>   Hi again,
>>   The news is good.
>>    
>>   Looks like Im coming home for most of July. 
>>    
>>   Should fly out of here on or around the first, and back to Kuwait for
>> three more months and coming home in early November for keeps.
>>    
>>   The wife wanted me to come home at the end of my year. The bosses diden't
>> want me to leave. This is the best compramise, a three month extension.
>>    
>>   That will leave plenty of time to train up any replacment they find for
>> me.
>>    
>>   Any of you guys want my job?
>>    
>>   I posted the notice on the DIY Audio Forums and had 126 people look at it,
>> and no replys. 
>>   Got one reply from a guy on the www.subguns.com. 
>>    
>>   If your interested send me a note at ka2zev at IDON'TLIKESPAMyahoo.com , 
>> (REMOVE CAPS) I will e mail out the details.
>>    
>>   Thanks in advance
>>   Mike 
>>
>> "You are, what you do, when it counts"
>> The Masso
>>     
>
>
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