A little update. I replaced the Teccor chip Q979 with a Q4025J6, the chips were 
dimensionally the same, and the dimmer panel now appears to be working fine.

----- Original Message -----
From: "Todd Zuercher" <[email protected]>
To: "Enhanced Machine Controller (EMC)" <[email protected]>
Sent: Thursday, August 15, 2013 12:46:41 AM
Subject: Re: [Emc-users] Help IDing this chip (off topic)

Thanks a lot to everyone who has tried to help me.

I think I am going to try to get one of these, and see if it works.
http://www.mouser.com/Search/ProductDetail.aspx?R=Q4025J6virtualkey57610000virtualkey576-Q4025J6
It at least looks like the old one.  I am kind of guessing on every thing else. 
 The dimmer circuit is fed by a 20 amp breaker and the dimmer board has a 15 
amp fuse, and the voltage is 120v AC. I think I would have rather tried the 
Q2025J6 but it isn't stocked and had a minimum order of 125pcs. 

Think I am making the right choice?

----- Original Message -----
From: "andy pugh" <[email protected]>
To: "Enhanced Machine Controller (EMC)" <[email protected]>
Sent: Wednesday, August 14, 2013 7:25:38 AM
Subject: Re: [Emc-users] Help IDing this chip (off topic)

On 14 August 2013 12:24, andy pugh <[email protected]> wrote:
> On 14 August 2013 12:18, andy pugh <[email protected]> wrote:
>
>> http://www.littelfuse.com/data/en/Data_Sheets/E4AlternistorTriac.pdf
>
> I guess it makes sense to go for the biggest?
> http://www.digikey.com/product-detail/en/Q4040K7TP/Q4040K7TP-ND/216027
>
> --
> atp
> If you can't fix it, you don't own it.
> http://www.ifixit.com/Manifesto



-- 
atp
If you can't fix it, you don't own it.
http://www.ifixit.com/Manifesto

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