[sdiy] On cloning, and the Oberheim VCO

[Roy J. Tellason]

On Monday 14 April 2008 16:49, mike ruberto wrote:
> I actually do not recommend upgrading any of the opamps. Nothing else
> I've tried works properly for A4. Something particular about the 301
> seems to be at play here. Also, I found oddly enough that modern 741s
> do not work so well for A2 and A3. I tried some NOS 70s era 741s and
> got much better performance in my clone circuit.

Now that's interesting.  I wonder what they've changed in the lowly 741?  I 
have some that have been hanging around for ages,  and have been wondering 
what I might do with them.  (A null indicator for a bridge was one project 
that came to mind...)  Some of them might even be Radio Shack parts.  Think 
they might work even better?  :-)

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin