On Wed, 14 Dec 2005 01:23:30 +0100, François Yves Le Gal
wrote:

On Tue, 13 Dec 2005 18:58:01 -0500, "Robert Morein"
wrote:

I disassembled a very fancy Pioneer Elite
preamp, and found 5532 outputs.

A properly used 5532 is able to swing ± 13 V on a 2 K load with a typical ±
15 V supply voltage...

The power supply was really tiny, using the
78XX regulators in TO-92 package.

At 8 mA of supply current per OP amp and 100 mA of available output current
per 78XX or 79XXin TO-92 form why should you need anything larger?

Umm... So you can charge 5 freaking grand for what is essentially a
switch, a buffer amp, and a pot?

It's really amazing how expensive most preamps are, considering how
cheap and easy it is to do that function... Madness.