20 Sep
2010
20 Sep
'10
7:35 p.m.
On Monday (09/20/2010 at 11:49AM -0700), Brent Hilpert wrote:
On 2010 Sep 19, at 6:14 PM, Chris Elmquist wrote:
I'm sure Nick will appreciate the offer... unfortunately, the one that's
in there is a 14-pin DIP. I'm not remembering now if I saw a manufacturers
mark on the package but I do see now that Fairchild made a single 709 in
a 14-pin DIP...
Chris
--
Chris Elmquist
<comes out from bushes> ah, that was me.
Was a great time and really a blast to dig into the Alto. We
definitely
improvised, not having a stock of uA709 opamp on hand... we just
bypassed
that regulator circuit and stuck a 7805 there instead, which was
pilfered
from Vince Briel's spare parts stock for his Altair8800micro kits.
Too much fun.
If the 709 was a TO-99 (can) package and you need to replace it, I have
lots of 741's in TO-99.
Just mentioning it in case it is difficult to find a 709 in TO-99. (DIP
should be easy to find something to substitute.)