MIKE ROSS wrote in a message to WAYNE CHIRNSIDE:

 WC> You're right, never heard of a 811.

 MR> It could be a misprint or house number?

Nope.  Full part number was,  I think,  811CJ,  the one letter representing
the package and the other the temp range.  This part was from Amelco,  a
division of Teledyne.  I haven't heard of them in ages but used to have an
inch-thick binder full of data sheets on their various parts.  The 709 was
one of them.

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