[GreenKeys] DT600 replacement op amps

[Jim Pruitt]

I wonder if anyone knows if there are better and more modern op amps to 
use in the DT600 (if someone was building one now...which I am) than the 
741 and the single 709?  I know the original ST6 by Hoff specified the 
709 in the input and not to be substituted but am wondering if the DT600 
had that same requirement and whether a newer more available through 
hole op amp would be better.  Has anyone done that?  What were the 
results (better?  or same?  or worse?)?  What opamp(s) would be good 
replacements?

Thank you.

Jim Pruitt
WA7DUY

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/greenkeys/attachments/20200708/c03cf0cf/attachment.html>