78MGT2 and 79MGT2 - test-drb@ccmp.vtda.org

27 Sep 2004

On Mon, 27 Sep 2004, Dwight K. Elvey wrote:
...
  From: "K.
Venkataramanan" &lt;rvtechno(a)vsnl.net&gt;

Hi there

I saw your posting.  I think I know where I can pick up these
Regulators.  Do you have the datasheets / pinouts so that I can test
them? 
 Hi Venkat
 These sound like standard 78xx and 79xx series regulators. The 78xx
 stuff are positive output and the 79xx are negative output. The pinouts
 on these are relatively standard for each particular package. Note that
 the negative and positive use different leads in the same package. It
 would seem that these are 2 volt regulators but I don't recognize the
 MGT package type. Look on the Jameco web page under regulators and I'm
 sure you'll find data sheets for similar regulators. 
I believe the email he was responding to was one I posted in 2002. The
regulators in question are Fairchild uA79MG and uA78MG. They are
4-terminal adjustable voltage regulators with a package style similar to a
typical TO-220. The actual Fairchild part number of the regulator that I'm
still hunting for is uA79MGU1C.

I have the Fairchild voltage regulator databook and responded to the
poster off-list. If someone has an electronic copy of the datasheet for
these regulators, speak up as it will save me the trouble of scanning the
relevant pages from the databook.

-Toth