[sdiy] 7741393?

[Michael Ruberto]

Harry,

>
>and which tar pit did you emerge from, Bambino (one year hence... :^) ???
>

I'm sorry I didn't mean to offend you. Would you feel better if I bought you 
a new O2 bottle and a Rascal for X-mass ;-) ??

>
>That might be. 741 opamps were a top product in 1971... quality may have 
>been
>more strictly tested for. Today, 741 are used for the most mundane apps so 
>who
>cares...
>

That would explain why they bothered gold plating the leads.

>OTOH I like the 741. Its nice and slow... has no phase reversal when you
>overdrive
>it. I have never had one latch due to common mode (sticky maybe, but no 
>latchy
>!)
>and it clips symmetrically.

On my SEM VCO clone I couldn't get a decent range of pitch until I replaced 
the modern 741s with the antiques.
I know by '75 they already had JFET op amps.
I'm guessing that Oberheim used 741s  back then because they were a superior 
device compared to todays 741s and probably much cheaper than the "new" JFET 
devices.
Would it be a good idea to upgrade to something like an AD711 or OP400?

M. A. Ruberto