Les Cargill wrote:
hank alrich wrote:
Scott Dorsey wrote:
PStamler wrote: And by the way -- in the 70s
we saw a lot of consoles with LM301 opamps, wh= ich had abysmal slew
rates under usual operating conditions. And those cons= oles sounded
like crap, too.=20
Although... surprisingly enough Studer made some consoles using LM301s
that actually sounded very good. I boggled when I discovered those
things were full of 301s. Then I looked at the schematics and noticed
that almost all of them were working at unity gain, or maybe a gain of
five or ten at most... --scott
The studio board we built at onion audio used LM301AN's, the military
version, which could run at a higher supply voltage, for buffer amps.
That sounds like the critical issue then - it's an impedance
lower-er, not a gain-add-er-er.
We
ran them just under their max. v. spec. The board sounded great.
Clipping* parts are clipping.
*realizing of course that they not have actually been clipping, but
there was distortion based in abuse of the parts on the basis of
expected Vout....
Board was clean and very quiet. It worked, very well. API pres, EQ's,
summing amps, and some of the limiters.
--
shut up and play your guitar *
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